40286820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{193}}^1$

素因数の和:290

約数の個数: 144

約数和(自身を含む): 133757568

約数和(自身を除く): 93470748

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 71, 84, 98, 105, 140, 142, 147, 193, 196, 210, 213, 245, 284, 294, 355, 386, 420, 426, 490, 497, 579, 588, 710, 735, 772, 852, 965, 980, 994, 1065, 1158, 1351, 1420, 1470, 1491, 1930, 1988, 2130, 2316, 2485, 2702, 2895, 2940, 2982, 3479, 3860, 4053, 4260, 4970, 5404, 5790, 5964, 6755, 6958, 7455, 8106, 9457, 9940, 10437, 11580, 13510, 13703, 13916, 14910, 16212, 17395, 18914, 20265, 20874, 27020, 27406, 28371, 29820, 34790, 37828, 40530, 41109, 41748, 47285, 52185, 54812, 56742, 68515, 69580, 81060, 82218, 94570, 95921, 104370, 113484, 137030, 141855, 164436, 189140, 191842, 205545, 208740, 274060, 283710, 287763, 383684, 411090, 479605, 567420, 575526, 671447, 822180, 959210, 1151052, 1342894, 1438815, 1918420, 2014341, 2685788, 2877630, 3357235, 4028682, 5755260, 6714470, 8057364, 10071705, 13428940, 20143410, 40286820]

約数ペア:

[(1, 40286820), (2, 20143410), (3, 13428940), (4, 10071705), (5, 8057364), (6, 6714470), (7, 5755260), (10, 4028682), (12, 3357235), (14, 2877630), (15, 2685788), (20, 2014341), (21, 1918420), (28, 1438815), (30, 1342894), (35, 1151052), (42, 959210), (49, 822180), (60, 671447), (70, 575526), (71, 567420), (84, 479605), (98, 411090), (105, 383684), (140, 287763), (142, 283710), (147, 274060), (193, 208740), (196, 205545), (210, 191842), (213, 189140), (245, 164436), (284, 141855), (294, 137030), (355, 113484), (386, 104370), (420, 95921), (426, 94570), (490, 82218), (497, 81060), (579, 69580), (588, 68515), (710, 56742), (735, 54812), (772, 52185), (852, 47285), (965, 41748), (980, 41109), (994, 40530), (1065, 37828), (1158, 34790), (1351, 29820), (1420, 28371), (1470, 27406), (1491, 27020), (1930, 20874), (1988, 20265), (2130, 18914), (2316, 17395), (2485, 16212), (2702, 14910), (2895, 13916), (2940, 13703), (2982, 13510), (3479, 11580), (3860, 10437), (4053, 9940), (4260, 9457), (4970, 8106), (5404, 7455), (5790, 6958), (5964, 6755)]