81970384

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{283}}^1\times {\mathrm{421}}^1$

素因数の和:755

約数の個数: 40

約数和(自身を含む): 163472672

約数和(自身を除く): 81502288

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 283, 344, 421, 566, 688, 842, 1132, 1684, 2264, 3368, 4528, 6736, 12169, 18103, 24338, 36206, 48676, 72412, 97352, 119143, 144824, 194704, 238286, 289648, 476572, 953144, 1906288, 5123149, 10246298, 20492596, 40985192, 81970384]

約数ペア:

[(1, 81970384), (2, 40985192), (4, 20492596), (8, 10246298), (16, 5123149), (43, 1906288), (86, 953144), (172, 476572), (283, 289648), (344, 238286), (421, 194704), (566, 144824), (688, 119143), (842, 97352), (1132, 72412), (1684, 48676), (2264, 36206), (3368, 24338), (4528, 18103), (6736, 12169)]