19667050

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{383}}^1$

素因数の和:487

約数の個数: 48

約数和(自身を含む): 39997440

約数和(自身を除く): 20330390

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 79, 130, 158, 325, 383, 395, 650, 766, 790, 1027, 1915, 1975, 2054, 3830, 3950, 4979, 5135, 9575, 9958, 10270, 19150, 24895, 25675, 30257, 49790, 51350, 60514, 124475, 151285, 248950, 302570, 393341, 756425, 786682, 1512850, 1966705, 3933410, 9833525, 19667050]

約数ペア:

[(1, 19667050), (2, 9833525), (5, 3933410), (10, 1966705), (13, 1512850), (25, 786682), (26, 756425), (50, 393341), (65, 302570), (79, 248950), (130, 151285), (158, 124475), (325, 60514), (383, 51350), (395, 49790), (650, 30257), (766, 25675), (790, 24895), (1027, 19150), (1915, 10270), (1975, 9958), (2054, 9575), (3830, 5135), (3950, 4979)]