28810160

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{11617}}^1$

素因数の和:11661

約数の個数: 40

約数和(自身を含む): 69150336

約数和(自身を除く): 40340176

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 11617, 23234, 46468, 58085, 92936, 116170, 185872, 232340, 360127, 464680, 720254, 929360, 1440508, 1800635, 2881016, 3601270, 5762032, 7202540, 14405080, 28810160]

約数ペア:

[(1, 28810160), (2, 14405080), (4, 7202540), (5, 5762032), (8, 3601270), (10, 2881016), (16, 1800635), (20, 1440508), (31, 929360), (40, 720254), (62, 464680), (80, 360127), (124, 232340), (155, 185872), (248, 116170), (310, 92936), (496, 58085), (620, 46468), (1240, 23234), (2480, 11617)]