87172520

素因数分解:

$2^3\times 5^1\times {\mathrm{659}}^1\times {\mathrm{3307}}^1$

素因数の和:3977

約数の個数: 32

約数和(自身を含む): 196495200

約数和(自身を除く): 109322680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 659, 1318, 2636, 3295, 3307, 5272, 6590, 6614, 13180, 13228, 16535, 26360, 26456, 33070, 66140, 132280, 2179313, 4358626, 8717252, 10896565, 17434504, 21793130, 43586260, 87172520]

約数ペア:

[(1, 87172520), (2, 43586260), (4, 21793130), (5, 17434504), (8, 10896565), (10, 8717252), (20, 4358626), (40, 2179313), (659, 132280), (1318, 66140), (2636, 33070), (3295, 26456), (3307, 26360), (5272, 16535), (6590, 13228), (6614, 13180)]