20403810

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{233}}^1$

素因数の和:392

約数の個数: 96

約数和(自身を含む): 61326720

約数和(自身を除く): 40922910

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 139, 210, 233, 278, 315, 417, 466, 630, 695, 699, 834, 973, 1165, 1251, 1390, 1398, 1631, 1946, 2085, 2097, 2330, 2502, 2919, 3262, 3495, 4170, 4194, 4865, 4893, 5838, 6255, 6990, 8155, 8757, 9730, 9786, 10485, 12510, 14595, 14679, 16310, 17514, 20970, 24465, 29190, 29358, 32387, 43785, 48930, 64774, 73395, 87570, 97161, 146790, 161935, 194322, 226709, 291483, 323870, 453418, 485805, 582966, 680127, 971610, 1133545, 1360254, 1457415, 2040381, 2267090, 2914830, 3400635, 4080762, 6801270, 10201905, 20403810]

約数ペア:

[(1, 20403810), (2, 10201905), (3, 6801270), (5, 4080762), (6, 3400635), (7, 2914830), (9, 2267090), (10, 2040381), (14, 1457415), (15, 1360254), (18, 1133545), (21, 971610), (30, 680127), (35, 582966), (42, 485805), (45, 453418), (63, 323870), (70, 291483), (90, 226709), (105, 194322), (126, 161935), (139, 146790), (210, 97161), (233, 87570), (278, 73395), (315, 64774), (417, 48930), (466, 43785), (630, 32387), (695, 29358), (699, 29190), (834, 24465), (973, 20970), (1165, 17514), (1251, 16310), (1390, 14679), (1398, 14595), (1631, 12510), (1946, 10485), (2085, 9786), (2097, 9730), (2330, 8757), (2502, 8155), (2919, 6990), (3262, 6255), (3495, 5838), (4170, 4893), (4194, 4865)]