180906520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{223}}^1\times {\mathrm{1193}}^1$

素因数の和:1444

約数の個数: 64

約数和(自身を含む): 433278720

約数和(自身を除く): 252372200

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 223, 340, 446, 680, 892, 1115, 1193, 1784, 2230, 2386, 3791, 4460, 4772, 5965, 7582, 8920, 9544, 11930, 15164, 18955, 20281, 23860, 30328, 37910, 40562, 47720, 75820, 81124, 101405, 151640, 162248, 202810, 266039, 405620, 532078, 811240, 1064156, 1330195, 2128312, 2660390, 4522663, 5320780, 9045326, 10641560, 18090652, 22613315, 36181304, 45226630, 90453260, 180906520]

約数ペア:

[(1, 180906520), (2, 90453260), (4, 45226630), (5, 36181304), (8, 22613315), (10, 18090652), (17, 10641560), (20, 9045326), (34, 5320780), (40, 4522663), (68, 2660390), (85, 2128312), (136, 1330195), (170, 1064156), (223, 811240), (340, 532078), (446, 405620), (680, 266039), (892, 202810), (1115, 162248), (1193, 151640), (1784, 101405), (2230, 81124), (2386, 75820), (3791, 47720), (4460, 40562), (4772, 37910), (5965, 30328), (7582, 23860), (8920, 20281), (9544, 18955), (11930, 15164)]