80491240

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{69389}}^1$

素因数の和:69429

約数の個数: 32

約数和(自身を含む): 187353000

約数和(自身を除く): 106861760

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 69389, 138778, 277556, 346945, 555112, 693890, 1387780, 2012281, 2775560, 4024562, 8049124, 10061405, 16098248, 20122810, 40245620, 80491240]

約数ペア:

[(1, 80491240), (2, 40245620), (4, 20122810), (5, 16098248), (8, 10061405), (10, 8049124), (20, 4024562), (29, 2775560), (40, 2012281), (58, 1387780), (116, 693890), (145, 555112), (232, 346945), (290, 277556), (580, 138778), (1160, 69389)]