20161923850

素因数分解:

$2^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{419}}^1\times {\mathrm{22381}}^1$

素因数の和:22855

約数の個数: 48

約数和(自身を含む): 38466600480

約数和(自身を除く): 18304676630

約数列:

[1, 2, 5, 10, 25, 43, 50, 86, 215, 419, 430, 838, 1075, 2095, 2150, 4190, 10475, 18017, 20950, 22381, 36034, 44762, 90085, 111905, 180170, 223810, 450425, 559525, 900850, 962383, 1119050, 1924766, 4811915, 9377639, 9623830, 18755278, 24059575, 46888195, 48119150, 93776390, 234440975, 403238477, 468881950, 806476954, 2016192385, 4032384770, 10080961925, 20161923850]

約数ペア:

[(1, 20161923850), (2, 10080961925), (5, 4032384770), (10, 2016192385), (25, 806476954), (43, 468881950), (50, 403238477), (86, 234440975), (215, 93776390), (419, 48119150), (430, 46888195), (838, 24059575), (1075, 18755278), (2095, 9623830), (2150, 9377639), (4190, 4811915), (10475, 1924766), (18017, 1119050), (20950, 962383), (22381, 900850), (36034, 559525), (44762, 450425), (90085, 223810), (111905, 180170)]