4390640

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{773}}^1$

素因数の和:857

約数の個数: 40

約数和(自身を含む): 10365408

約数和(自身を除く): 5974768

約数列:

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

約数ペア:

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