20445390

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1$

素因数の和:143

約数の個数: 192

約数和(自身を含む): 67931136

約数和(自身を除く): 47485746

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 17, 18, 21, 23, 30, 34, 35, 42, 45, 46, 51, 63, 69, 70, 83, 85, 90, 102, 105, 115, 119, 126, 138, 153, 161, 166, 170, 207, 210, 230, 238, 249, 255, 306, 315, 322, 345, 357, 391, 414, 415, 483, 498, 510, 581, 595, 630, 690, 714, 747, 765, 782, 805, 830, 966, 1035, 1071, 1162, 1173, 1190, 1245, 1411, 1449, 1494, 1530, 1610, 1743, 1785, 1909, 1955, 2070, 2142, 2346, 2415, 2490, 2737, 2822, 2898, 2905, 3486, 3519, 3570, 3735, 3818, 3910, 4233, 4830, 5229, 5355, 5474, 5727, 5810, 5865, 7038, 7055, 7245, 7470, 8211, 8466, 8715, 9545, 9877, 10458, 10710, 11454, 11730, 12699, 13363, 13685, 14110, 14490, 16422, 17181, 17430, 17595, 19090, 19754, 21165, 24633, 25398, 26145, 26726, 27370, 28635, 29631, 32453, 34362, 35190, 40089, 41055, 42330, 49266, 49385, 52290, 57270, 59262, 63495, 64906, 66815, 80178, 82110, 85905, 88893, 97359, 98770, 120267, 123165, 126990, 133630, 148155, 162265, 171810, 177786, 194718, 200445, 227171, 240534, 246330, 292077, 296310, 324530, 400890, 444465, 454342, 486795, 584154, 601335, 681513, 888930, 973590, 1135855, 1202670, 1363026, 1460385, 2044539, 2271710, 2920770, 3407565, 4089078, 6815130, 10222695, 20445390]

約数ペア:

[(1, 20445390), (2, 10222695), (3, 6815130), (5, 4089078), (6, 3407565), (7, 2920770), (9, 2271710), (10, 2044539), (14, 1460385), (15, 1363026), (17, 1202670), (18, 1135855), (21, 973590), (23, 888930), (30, 681513), (34, 601335), (35, 584154), (42, 486795), (45, 454342), (46, 444465), (51, 400890), (63, 324530), (69, 296310), (70, 292077), (83, 246330), (85, 240534), (90, 227171), (102, 200445), (105, 194718), (115, 177786), (119, 171810), (126, 162265), (138, 148155), (153, 133630), (161, 126990), (166, 123165), (170, 120267), (207, 98770), (210, 97359), (230, 88893), (238, 85905), (249, 82110), (255, 80178), (306, 66815), (315, 64906), (322, 63495), (345, 59262), (357, 57270), (391, 52290), (414, 49385), (415, 49266), (483, 42330), (498, 41055), (510, 40089), (581, 35190), (595, 34362), (630, 32453), (690, 29631), (714, 28635), (747, 27370), (765, 26726), (782, 26145), (805, 25398), (830, 24633), (966, 21165), (1035, 19754), (1071, 19090), (1162, 17595), (1173, 17430), (1190, 17181), (1245, 16422), (1411, 14490), (1449, 14110), (1494, 13685), (1530, 13363), (1610, 12699), (1743, 11730), (1785, 11454), (1909, 10710), (1955, 10458), (2070, 9877), (2142, 9545), (2346, 8715), (2415, 8466), (2490, 8211), (2737, 7470), (2822, 7245), (2898, 7055), (2905, 7038), (3486, 5865), (3519, 5810), (3570, 5727), (3735, 5474), (3818, 5355), (3910, 5229), (4233, 4830)]