18841025

素因数分解:

$5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1$

素因数の和:222

約数の個数: 48

約数和(自身を含む): 28950528

約数和(自身を除く): 10109503

約数列:

[1, 5, 7, 23, 25, 31, 35, 115, 151, 155, 161, 175, 217, 575, 713, 755, 775, 805, 1057, 1085, 3473, 3565, 3775, 4025, 4681, 4991, 5285, 5425, 17365, 17825, 23405, 24311, 24955, 26425, 32767, 86825, 107663, 117025, 121555, 124775, 163835, 538315, 607775, 753641, 819175, 2691575, 3768205, 18841025]

約数ペア:

[(1, 18841025), (5, 3768205), (7, 2691575), (23, 819175), (25, 753641), (31, 607775), (35, 538315), (115, 163835), (151, 124775), (155, 121555), (161, 117025), (175, 107663), (217, 86825), (575, 32767), (713, 26425), (755, 24955), (775, 24311), (805, 23405), (1057, 17825), (1085, 17365), (3473, 5425), (3565, 5285), (3775, 4991), (4025, 4681)]