20868240

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{86951}}^1$

素因数の和:86967

約数の個数: 40

約数和(自身を含む): 64692288

約数和(自身を除く): 43824048

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 86951, 173902, 260853, 347804, 434755, 521706, 695608, 869510, 1043412, 1304265, 1391216, 1739020, 2086824, 2608530, 3478040, 4173648, 5217060, 6956080, 10434120, 20868240]

約数ペア:

[(1, 20868240), (2, 10434120), (3, 6956080), (4, 5217060), (5, 4173648), (6, 3478040), (8, 2608530), (10, 2086824), (12, 1739020), (15, 1391216), (16, 1304265), (20, 1043412), (24, 869510), (30, 695608), (40, 521706), (48, 434755), (60, 347804), (80, 260853), (120, 173902), (240, 86951)]