28260778

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{5009}}^1$

素因数の和:5062

約数の個数: 32

約数和(自身を含む): 53867520

約数和(自身を除く): 25606742

約数列:

[1, 2, 7, 13, 14, 26, 31, 62, 91, 182, 217, 403, 434, 806, 2821, 5009, 5642, 10018, 35063, 65117, 70126, 130234, 155279, 310558, 455819, 911638, 1086953, 2018627, 2173906, 4037254, 14130389, 28260778]

約数ペア:

[(1, 28260778), (2, 14130389), (7, 4037254), (13, 2173906), (14, 2018627), (26, 1086953), (31, 911638), (62, 455819), (91, 310558), (182, 155279), (217, 130234), (403, 70126), (434, 65117), (806, 35063), (2821, 10018), (5009, 5642)]