20874915120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{86978813}}^1$

素因数の和:86978829

約数の個数: 40

約数和(自身を含む): 64712237616

約数和(自身を除く): 43837322496

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 86978813, 173957626, 260936439, 347915252, 434894065, 521872878, 695830504, 869788130, 1043745756, 1304682195, 1391661008, 1739576260, 2087491512, 2609364390, 3479152520, 4174983024, 5218728780, 6958305040, 10437457560, 20874915120]

約数ペア:

[(1, 20874915120), (2, 10437457560), (3, 6958305040), (4, 5218728780), (5, 4174983024), (6, 3479152520), (8, 2609364390), (10, 2087491512), (12, 1739576260), (15, 1391661008), (16, 1304682195), (20, 1043745756), (24, 869788130), (30, 695830504), (40, 521872878), (48, 434894065), (60, 347915252), (80, 260936439), (120, 173957626), (240, 86978813)]