28979360

素因数分解:

$2^5\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2551}}^1$

素因数の和:2637

約数の個数: 48

約数和(自身を含む): 69455232

約数和(自身を除く): 40475872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 71, 80, 142, 160, 284, 355, 568, 710, 1136, 1420, 2272, 2551, 2840, 5102, 5680, 10204, 11360, 12755, 20408, 25510, 40816, 51020, 81632, 102040, 181121, 204080, 362242, 408160, 724484, 905605, 1448968, 1811210, 2897936, 3622420, 5795872, 7244840, 14489680, 28979360]

約数ペア:

[(1, 28979360), (2, 14489680), (4, 7244840), (5, 5795872), (8, 3622420), (10, 2897936), (16, 1811210), (20, 1448968), (32, 905605), (40, 724484), (71, 408160), (80, 362242), (142, 204080), (160, 181121), (284, 102040), (355, 81632), (568, 51020), (710, 40816), (1136, 25510), (1420, 20408), (2272, 12755), (2551, 11360), (2840, 10204), (5102, 5680)]