90098480

素因数分解:

$2^4\times 5^1\times {\mathrm{659}}^1\times {\mathrm{1709}}^1$

素因数の和:2381

約数の個数: 40

約数和(自身を含む): 209919600

約数和(自身を除く): 119821120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 659, 1318, 1709, 2636, 3295, 3418, 5272, 6590, 6836, 8545, 10544, 13180, 13672, 17090, 26360, 27344, 34180, 52720, 68360, 136720, 1126231, 2252462, 4504924, 5631155, 9009848, 11262310, 18019696, 22524620, 45049240, 90098480]

約数ペア:

[(1, 90098480), (2, 45049240), (4, 22524620), (5, 18019696), (8, 11262310), (10, 9009848), (16, 5631155), (20, 4504924), (40, 2252462), (80, 1126231), (659, 136720), (1318, 68360), (1709, 52720), (2636, 34180), (3295, 27344), (3418, 26360), (5272, 17090), (6590, 13672), (6836, 13180), (8545, 10544)]