19746350

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1787}}^1$

素因数の和:1829

約数の個数: 48

約数和(自身を含む): 41903568

約数和(自身を除く): 22157218

約数列:

[1, 2, 5, 10, 13, 17, 25, 26, 34, 50, 65, 85, 130, 170, 221, 325, 425, 442, 650, 850, 1105, 1787, 2210, 3574, 5525, 8935, 11050, 17870, 23231, 30379, 44675, 46462, 60758, 89350, 116155, 151895, 232310, 303790, 394927, 580775, 759475, 789854, 1161550, 1518950, 1974635, 3949270, 9873175, 19746350]

約数ペア:

[(1, 19746350), (2, 9873175), (5, 3949270), (10, 1974635), (13, 1518950), (17, 1161550), (25, 789854), (26, 759475), (34, 580775), (50, 394927), (65, 303790), (85, 232310), (130, 151895), (170, 116155), (221, 89350), (325, 60758), (425, 46462), (442, 44675), (650, 30379), (850, 23231), (1105, 17870), (1787, 11050), (2210, 8935), (3574, 5525)]