31365880

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1231}}^1$

素因数の和:1269

約数の個数: 96

約数和(自身を含む): 88482240

約数和(自身を除く): 57116360

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 49, 52, 56, 65, 70, 91, 98, 104, 130, 140, 182, 196, 245, 260, 280, 364, 392, 455, 490, 520, 637, 728, 910, 980, 1231, 1274, 1820, 1960, 2462, 2548, 3185, 3640, 4924, 5096, 6155, 6370, 8617, 9848, 12310, 12740, 16003, 17234, 24620, 25480, 32006, 34468, 43085, 49240, 60319, 64012, 68936, 80015, 86170, 112021, 120638, 128024, 160030, 172340, 224042, 241276, 301595, 320060, 344680, 448084, 482552, 560105, 603190, 640120, 784147, 896168, 1120210, 1206380, 1568294, 2240420, 2412760, 3136588, 3920735, 4480840, 6273176, 7841470, 15682940, 31365880]

約数ペア:

[(1, 31365880), (2, 15682940), (4, 7841470), (5, 6273176), (7, 4480840), (8, 3920735), (10, 3136588), (13, 2412760), (14, 2240420), (20, 1568294), (26, 1206380), (28, 1120210), (35, 896168), (40, 784147), (49, 640120), (52, 603190), (56, 560105), (65, 482552), (70, 448084), (91, 344680), (98, 320060), (104, 301595), (130, 241276), (140, 224042), (182, 172340), (196, 160030), (245, 128024), (260, 120638), (280, 112021), (364, 86170), (392, 80015), (455, 68936), (490, 64012), (520, 60319), (637, 49240), (728, 43085), (910, 34468), (980, 32006), (1231, 25480), (1274, 24620), (1820, 17234), (1960, 16003), (2462, 12740), (2548, 12310), (3185, 9848), (3640, 8617), (4924, 6370), (5096, 6155)]