1819391490

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{367}}^1$

素因数の和:494

約数の個数: 256

約数和(自身を含む): 5782487040

約数和(自身を除く): 3963095550

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 43, 45, 54, 61, 63, 70, 86, 90, 105, 122, 126, 129, 135, 183, 189, 210, 215, 258, 270, 301, 305, 315, 366, 367, 378, 387, 427, 430, 549, 602, 610, 630, 645, 734, 774, 854, 903, 915, 945, 1098, 1101, 1161, 1281, 1290, 1505, 1647, 1806, 1830, 1835, 1890, 1935, 2135, 2202, 2322, 2562, 2569, 2623, 2709, 2745, 3010, 3294, 3303, 3670, 3843, 3870, 4270, 4515, 5138, 5246, 5418, 5490, 5505, 5805, 6405, 6606, 7686, 7707, 7869, 8127, 8235, 9030, 9909, 11010, 11529, 11610, 12810, 12845, 13115, 13545, 15414, 15738, 15781, 16254, 16470, 16515, 18361, 19215, 19818, 22387, 23058, 23121, 23607, 25690, 26230, 27090, 31562, 33030, 36722, 38430, 38535, 39345, 40635, 44774, 46242, 47214, 47343, 49545, 55083, 57645, 67161, 69363, 70821, 77070, 78690, 78905, 81270, 91805, 94686, 99090, 110166, 110467, 111935, 115290, 115605, 118035, 134322, 138726, 141642, 142029, 156709, 157810, 165249, 183610, 201483, 220934, 223870, 231210, 236070, 236715, 275415, 284058, 313418, 330498, 331401, 335805, 346815, 354105, 402966, 426087, 470127, 473430, 495747, 550830, 552335, 604449, 662802, 671610, 693630, 708210, 710145, 783545, 826245, 852174, 940254, 962641, 991494, 994203, 1007415, 1104670, 1208898, 1410381, 1420290, 1567090, 1652490, 1657005, 1925282, 1988406, 2014830, 2130435, 2350635, 2478735, 2820762, 2887923, 2982609, 3022245, 3314010, 4231143, 4260870, 4701270, 4813205, 4957470, 4971015, 5775846, 5965218, 6044490, 6738487, 7051905, 8462286, 8663769, 9626410, 9942030, 13476974, 14103810, 14439615, 14913045, 17327538, 20215461, 21155715, 25991307, 28879230, 29826090, 33692435, 40430922, 42311430, 43318845, 51982614, 60646383, 67384870, 86637690, 101077305, 121292766, 129956535, 181939149, 202154610, 259913070, 303231915, 363878298, 606463830, 909695745, 1819391490]

約数ペア:

[(1, 1819391490), (2, 909695745), (3, 606463830), (5, 363878298), (6, 303231915), (7, 259913070), (9, 202154610), (10, 181939149), (14, 129956535), (15, 121292766), (18, 101077305), (21, 86637690), (27, 67384870), (30, 60646383), (35, 51982614), (42, 43318845), (43, 42311430), (45, 40430922), (54, 33692435), (61, 29826090), (63, 28879230), (70, 25991307), (86, 21155715), (90, 20215461), (105, 17327538), (122, 14913045), (126, 14439615), (129, 14103810), (135, 13476974), (183, 9942030), (189, 9626410), (210, 8663769), (215, 8462286), (258, 7051905), (270, 6738487), (301, 6044490), (305, 5965218), (315, 5775846), (366, 4971015), (367, 4957470), (378, 4813205), (387, 4701270), (427, 4260870), (430, 4231143), (549, 3314010), (602, 3022245), (610, 2982609), (630, 2887923), (645, 2820762), (734, 2478735), (774, 2350635), (854, 2130435), (903, 2014830), (915, 1988406), (945, 1925282), (1098, 1657005), (1101, 1652490), (1161, 1567090), (1281, 1420290), (1290, 1410381), (1505, 1208898), (1647, 1104670), (1806, 1007415), (1830, 994203), (1835, 991494), (1890, 962641), (1935, 940254), (2135, 852174), (2202, 826245), (2322, 783545), (2562, 710145), (2569, 708210), (2623, 693630), (2709, 671610), (2745, 662802), (3010, 604449), (3294, 552335), (3303, 550830), (3670, 495747), (3843, 473430), (3870, 470127), (4270, 426087), (4515, 402966), (5138, 354105), (5246, 346815), (5418, 335805), (5490, 331401), (5505, 330498), (5805, 313418), (6405, 284058), (6606, 275415), (7686, 236715), (7707, 236070), (7869, 231210), (8127, 223870), (8235, 220934), (9030, 201483), (9909, 183610), (11010, 165249), (11529, 157810), (11610, 156709), (12810, 142029), (12845, 141642), (13115, 138726), (13545, 134322), (15414, 118035), (15738, 115605), (15781, 115290), (16254, 111935), (16470, 110467), (16515, 110166), (18361, 99090), (19215, 94686), (19818, 91805), (22387, 81270), (23058, 78905), (23121, 78690), (23607, 77070), (25690, 70821), (26230, 69363), (27090, 67161), (31562, 57645), (33030, 55083), (36722, 49545), (38430, 47343), (38535, 47214), (39345, 46242), (40635, 44774)]