31717120

素因数分解:

$2^8\times 5^1\times {\mathrm{71}}^1\times {\mathrm{349}}^1$

素因数の和:441

約数の個数: 72

約数和(自身を含む): 77263200

約数和(自身を除く): 45546080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 128, 142, 160, 256, 284, 320, 349, 355, 568, 640, 698, 710, 1136, 1280, 1396, 1420, 1745, 2272, 2792, 2840, 3490, 4544, 5584, 5680, 6980, 9088, 11168, 11360, 13960, 18176, 22336, 22720, 24779, 27920, 44672, 45440, 49558, 55840, 89344, 90880, 99116, 111680, 123895, 198232, 223360, 247790, 396464, 446720, 495580, 792928, 991160, 1585856, 1982320, 3171712, 3964640, 6343424, 7929280, 15858560, 31717120]

約数ペア:

[(1, 31717120), (2, 15858560), (4, 7929280), (5, 6343424), (8, 3964640), (10, 3171712), (16, 1982320), (20, 1585856), (32, 991160), (40, 792928), (64, 495580), (71, 446720), (80, 396464), (128, 247790), (142, 223360), (160, 198232), (256, 123895), (284, 111680), (320, 99116), (349, 90880), (355, 89344), (568, 55840), (640, 49558), (698, 45440), (710, 44672), (1136, 27920), (1280, 24779), (1396, 22720), (1420, 22336), (1745, 18176), (2272, 13960), (2792, 11360), (2840, 11168), (3490, 9088), (4544, 6980), (5584, 5680)]