1981820880

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{2551}}^1$

素因数の和:2666

約数の個数: 240

約数和(自身を含む): 7256785536

約数和(自身を除く): 5274964656

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 83, 90, 104, 117, 120, 130, 144, 156, 166, 180, 195, 208, 234, 240, 249, 260, 312, 332, 360, 390, 415, 468, 498, 520, 585, 624, 664, 720, 747, 780, 830, 936, 996, 1040, 1079, 1170, 1245, 1328, 1494, 1560, 1660, 1872, 1992, 2158, 2340, 2490, 2551, 2988, 3120, 3237, 3320, 3735, 3984, 4316, 4680, 4980, 5102, 5395, 5976, 6474, 6640, 7470, 7653, 8632, 9360, 9711, 9960, 10204, 10790, 11952, 12755, 12948, 14940, 15306, 16185, 17264, 19422, 19920, 20408, 21580, 22959, 25510, 25896, 29880, 30612, 32370, 33163, 38265, 38844, 40816, 43160, 45918, 48555, 51020, 51792, 59760, 61224, 64740, 66326, 76530, 77688, 86320, 91836, 97110, 99489, 102040, 114795, 122448, 129480, 132652, 153060, 155376, 165815, 183672, 194220, 198978, 204080, 211733, 229590, 258960, 265304, 298467, 306120, 331630, 367344, 388440, 397956, 423466, 459180, 497445, 530608, 596934, 612240, 635199, 663260, 776880, 795912, 846932, 918360, 994890, 1058665, 1193868, 1270398, 1326520, 1492335, 1591824, 1693864, 1836720, 1905597, 1989780, 2117330, 2387736, 2540796, 2653040, 2752529, 2984670, 3175995, 3387728, 3811194, 3979560, 4234660, 4775472, 5081592, 5505058, 5969340, 6351990, 7622388, 7959120, 8257587, 8469320, 9527985, 10163184, 11010116, 11938680, 12703980, 13762645, 15244776, 16515174, 16938640, 19055970, 22020232, 23877360, 24772761, 25407960, 27525290, 30489552, 33030348, 38111940, 41287935, 44040464, 49545522, 50815920, 55050580, 66060696, 76223880, 82575870, 99091044, 110101160, 123863805, 132121392, 152447760, 165151740, 198182088, 220202320, 247727610, 330303480, 396364176, 495455220, 660606960, 990910440, 1981820880]

約数ペア:

[(1, 1981820880), (2, 990910440), (3, 660606960), (4, 495455220), (5, 396364176), (6, 330303480), (8, 247727610), (9, 220202320), (10, 198182088), (12, 165151740), (13, 152447760), (15, 132121392), (16, 123863805), (18, 110101160), (20, 99091044), (24, 82575870), (26, 76223880), (30, 66060696), (36, 55050580), (39, 50815920), (40, 49545522), (45, 44040464), (48, 41287935), (52, 38111940), (60, 33030348), (65, 30489552), (72, 27525290), (78, 25407960), (80, 24772761), (83, 23877360), (90, 22020232), (104, 19055970), (117, 16938640), (120, 16515174), (130, 15244776), (144, 13762645), (156, 12703980), (166, 11938680), (180, 11010116), (195, 10163184), (208, 9527985), (234, 8469320), (240, 8257587), (249, 7959120), (260, 7622388), (312, 6351990), (332, 5969340), (360, 5505058), (390, 5081592), (415, 4775472), (468, 4234660), (498, 3979560), (520, 3811194), (585, 3387728), (624, 3175995), (664, 2984670), (720, 2752529), (747, 2653040), (780, 2540796), (830, 2387736), (936, 2117330), (996, 1989780), (1040, 1905597), (1079, 1836720), (1170, 1693864), (1245, 1591824), (1328, 1492335), (1494, 1326520), (1560, 1270398), (1660, 1193868), (1872, 1058665), (1992, 994890), (2158, 918360), (2340, 846932), (2490, 795912), (2551, 776880), (2988, 663260), (3120, 635199), (3237, 612240), (3320, 596934), (3735, 530608), (3984, 497445), (4316, 459180), (4680, 423466), (4980, 397956), (5102, 388440), (5395, 367344), (5976, 331630), (6474, 306120), (6640, 298467), (7470, 265304), (7653, 258960), (8632, 229590), (9360, 211733), (9711, 204080), (9960, 198978), (10204, 194220), (10790, 183672), (11952, 165815), (12755, 155376), (12948, 153060), (14940, 132652), (15306, 129480), (16185, 122448), (17264, 114795), (19422, 102040), (19920, 99489), (20408, 97110), (21580, 91836), (22959, 86320), (25510, 77688), (25896, 76530), (29880, 66326), (30612, 64740), (32370, 61224), (33163, 59760), (38265, 51792), (38844, 51020), (40816, 48555), (43160, 45918)]