28916920

素因数分解:

$2^3\times 5^1\times {\mathrm{659}}^1\times {\mathrm{1097}}^1$

素因数の和:1767

約数の個数: 32

約数和(自身を含む): 65221200

約数和(自身を除く): 36304280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 659, 1097, 1318, 2194, 2636, 3295, 4388, 5272, 5485, 6590, 8776, 10970, 13180, 21940, 26360, 43880, 722923, 1445846, 2891692, 3614615, 5783384, 7229230, 14458460, 28916920]

約数ペア:

[(1, 28916920), (2, 14458460), (4, 7229230), (5, 5783384), (8, 3614615), (10, 2891692), (20, 1445846), (40, 722923), (659, 43880), (1097, 26360), (1318, 21940), (2194, 13180), (2636, 10970), (3295, 8776), (4388, 6590), (5272, 5485)]