218507475

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{643}}^1$

素因数の和:876

約数の個数: 48

約数和(自身を含む): 379475712

約数和(自身を除く): 160968237

約数列:

[1, 3, 5, 15, 23, 25, 69, 75, 115, 197, 345, 575, 591, 643, 985, 1725, 1929, 2955, 3215, 4531, 4925, 9645, 13593, 14775, 14789, 16075, 22655, 44367, 48225, 67965, 73945, 113275, 126671, 221835, 339825, 369725, 380013, 633355, 1109175, 1900065, 2913433, 3166775, 8740299, 9500325, 14567165, 43701495, 72835825, 218507475]

約数ペア:

[(1, 218507475), (3, 72835825), (5, 43701495), (15, 14567165), (23, 9500325), (25, 8740299), (69, 3166775), (75, 2913433), (115, 1900065), (197, 1109175), (345, 633355), (575, 380013), (591, 369725), (643, 339825), (985, 221835), (1725, 126671), (1929, 113275), (2955, 73945), (3215, 67965), (4531, 48225), (4925, 44367), (9645, 22655), (13593, 16075), (14775, 14789)]