18360828

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{409}}^1$

素因数の和:491

約数の個数: 72

約数和(自身を含む): 49249200

約数和(自身を除く): 30888372

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 43, 58, 86, 87, 116, 129, 172, 174, 258, 261, 348, 387, 409, 516, 522, 774, 818, 1044, 1227, 1247, 1548, 1636, 2454, 2494, 3681, 3741, 4908, 4988, 7362, 7482, 11223, 11861, 14724, 14964, 17587, 22446, 23722, 35174, 35583, 44892, 47444, 52761, 70348, 71166, 105522, 106749, 142332, 158283, 211044, 213498, 316566, 426996, 510023, 633132, 1020046, 1530069, 2040092, 3060138, 4590207, 6120276, 9180414, 18360828]

約数ペア:

[(1, 18360828), (2, 9180414), (3, 6120276), (4, 4590207), (6, 3060138), (9, 2040092), (12, 1530069), (18, 1020046), (29, 633132), (36, 510023), (43, 426996), (58, 316566), (86, 213498), (87, 211044), (116, 158283), (129, 142332), (172, 106749), (174, 105522), (258, 71166), (261, 70348), (348, 52761), (387, 47444), (409, 44892), (516, 35583), (522, 35174), (774, 23722), (818, 22446), (1044, 17587), (1227, 14964), (1247, 14724), (1548, 11861), (1636, 11223), (2454, 7482), (2494, 7362), (3681, 4988), (3741, 4908)]