1878160

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1381}}^1$

素因数の和:1411

約数の個数: 40

約数和(自身を含む): 4626936

約数和(自身を除く): 2748776

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 1381, 2762, 5524, 6905, 11048, 13810, 22096, 23477, 27620, 46954, 55240, 93908, 110480, 117385, 187816, 234770, 375632, 469540, 939080, 1878160]

約数ペア:

[(1, 1878160), (2, 939080), (4, 469540), (5, 375632), (8, 234770), (10, 187816), (16, 117385), (17, 110480), (20, 93908), (34, 55240), (40, 46954), (68, 27620), (80, 23477), (85, 22096), (136, 13810), (170, 11048), (272, 6905), (340, 5524), (680, 2762), (1360, 1381)]