249519080

素因数分解:

$2^3\times 5^1\times {\mathrm{1381}}^1\times {\mathrm{4517}}^1$

素因数の和:5909

約数の個数: 32

約数和(自身を含む): 561948840

約数和(自身を除く): 312429760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1381, 2762, 4517, 5524, 6905, 9034, 11048, 13810, 18068, 22585, 27620, 36136, 45170, 55240, 90340, 180680, 6237977, 12475954, 24951908, 31189885, 49903816, 62379770, 124759540, 249519080]

約数ペア:

[(1, 249519080), (2, 124759540), (4, 62379770), (5, 49903816), (8, 31189885), (10, 24951908), (20, 12475954), (40, 6237977), (1381, 180680), (2762, 90340), (4517, 55240), (5524, 45170), (6905, 36136), (9034, 27620), (11048, 22585), (13810, 18068)]