40720720

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{13757}}^1$

素因数の和:13807

約数の個数: 40

約数和(自身を含む): 97241544

約数和(自身を除く): 56520824

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 592, 740, 1480, 2960, 13757, 27514, 55028, 68785, 110056, 137570, 220112, 275140, 509009, 550280, 1018018, 1100560, 2036036, 2545045, 4072072, 5090090, 8144144, 10180180, 20360360, 40720720]

約数ペア:

[(1, 40720720), (2, 20360360), (4, 10180180), (5, 8144144), (8, 5090090), (10, 4072072), (16, 2545045), (20, 2036036), (37, 1100560), (40, 1018018), (74, 550280), (80, 509009), (148, 275140), (185, 220112), (296, 137570), (370, 110056), (592, 68785), (740, 55028), (1480, 27514), (2960, 13757)]