19905350

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{911}}^1$

素因数の和:965

約数の個数: 48

約数和(自身を含む): 40711680

約数和(自身を除く): 20806330

約数列:

[1, 2, 5, 10, 19, 23, 25, 38, 46, 50, 95, 115, 190, 230, 437, 475, 575, 874, 911, 950, 1150, 1822, 2185, 4370, 4555, 9110, 10925, 17309, 20953, 21850, 22775, 34618, 41906, 45550, 86545, 104765, 173090, 209530, 398107, 432725, 523825, 796214, 865450, 1047650, 1990535, 3981070, 9952675, 19905350]

約数ペア:

[(1, 19905350), (2, 9952675), (5, 3981070), (10, 1990535), (19, 1047650), (23, 865450), (25, 796214), (38, 523825), (46, 432725), (50, 398107), (95, 209530), (115, 173090), (190, 104765), (230, 86545), (437, 45550), (475, 41906), (575, 34618), (874, 22775), (911, 21850), (950, 20953), (1150, 17309), (1822, 10925), (2185, 9110), (4370, 4555)]