31978400

素因数分解:

$2^5\times 5^2\times {\mathrm{71}}^1\times {\mathrm{563}}^1$

素因数の和:654

約数の個数: 72

約数和(自身を含む): 79307424

約数和(自身を除く): 47329024

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 71, 80, 100, 142, 160, 200, 284, 355, 400, 563, 568, 710, 800, 1126, 1136, 1420, 1775, 2252, 2272, 2815, 2840, 3550, 4504, 5630, 5680, 7100, 9008, 11260, 11360, 14075, 14200, 18016, 22520, 28150, 28400, 39973, 45040, 56300, 56800, 79946, 90080, 112600, 159892, 199865, 225200, 319784, 399730, 450400, 639568, 799460, 999325, 1279136, 1598920, 1998650, 3197840, 3997300, 6395680, 7994600, 15989200, 31978400]

約数ペア:

[(1, 31978400), (2, 15989200), (4, 7994600), (5, 6395680), (8, 3997300), (10, 3197840), (16, 1998650), (20, 1598920), (25, 1279136), (32, 999325), (40, 799460), (50, 639568), (71, 450400), (80, 399730), (100, 319784), (142, 225200), (160, 199865), (200, 159892), (284, 112600), (355, 90080), (400, 79946), (563, 56800), (568, 56300), (710, 45040), (800, 39973), (1126, 28400), (1136, 28150), (1420, 22520), (1775, 18016), (2252, 14200), (2272, 14075), (2815, 11360), (2840, 11260), (3550, 9008), (4504, 7100), (5630, 5680)]