286640360

素因数分解:

$2^3\times 5^1\times {\mathrm{1381}}^1\times {\mathrm{5189}}^1$

素因数の和:6581

約数の個数: 32

約数和(自身を含む): 645532200

約数和(自身を除く): 358891840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1381, 2762, 5189, 5524, 6905, 10378, 11048, 13810, 20756, 25945, 27620, 41512, 51890, 55240, 103780, 207560, 7166009, 14332018, 28664036, 35830045, 57328072, 71660090, 143320180, 286640360]

約数ペア:

[(1, 286640360), (2, 143320180), (4, 71660090), (5, 57328072), (8, 35830045), (10, 28664036), (20, 14332018), (40, 7166009), (1381, 207560), (2762, 103780), (5189, 55240), (5524, 51890), (6905, 41512), (10378, 27620), (11048, 25945), (13810, 20756)]