8781280

素因数分解:

$2^5\times 5^1\times {\mathrm{71}}^1\times {\mathrm{773}}^1$

素因数の和:859

約数の個数: 48

約数和(自身を含む): 21065184

約数和(自身を除く): 12283904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 71, 80, 142, 160, 284, 355, 568, 710, 773, 1136, 1420, 1546, 2272, 2840, 3092, 3865, 5680, 6184, 7730, 11360, 12368, 15460, 24736, 30920, 54883, 61840, 109766, 123680, 219532, 274415, 439064, 548830, 878128, 1097660, 1756256, 2195320, 4390640, 8781280]

約数ペア:

[(1, 8781280), (2, 4390640), (4, 2195320), (5, 1756256), (8, 1097660), (10, 878128), (16, 548830), (20, 439064), (32, 274415), (40, 219532), (71, 123680), (80, 109766), (142, 61840), (160, 54883), (284, 30920), (355, 24736), (568, 15460), (710, 12368), (773, 11360), (1136, 7730), (1420, 6184), (1546, 5680), (2272, 3865), (2840, 3092)]