19158850

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{181}}^1$

素因数の和:295

約数の個数: 48

約数和(自身を含む): 37575720

約数和(自身を除く): 18416870

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 73, 145, 146, 181, 290, 362, 365, 725, 730, 905, 1450, 1810, 1825, 2117, 3650, 4234, 4525, 5249, 9050, 10498, 10585, 13213, 21170, 26245, 26426, 52490, 52925, 66065, 105850, 131225, 132130, 262450, 330325, 383177, 660650, 766354, 1915885, 3831770, 9579425, 19158850]

約数ペア:

[(1, 19158850), (2, 9579425), (5, 3831770), (10, 1915885), (25, 766354), (29, 660650), (50, 383177), (58, 330325), (73, 262450), (145, 132130), (146, 131225), (181, 105850), (290, 66065), (362, 52925), (365, 52490), (725, 26426), (730, 26245), (905, 21170), (1450, 13213), (1810, 10585), (1825, 10498), (2117, 9050), (3650, 5249), (4234, 4525)]