255219380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{18521}}^1$

素因数の和:18596

約数の個数: 48

約数和(自身を含む): 588110544

約数和(自身を除く): 332891164

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 53, 65, 106, 130, 212, 260, 265, 530, 689, 1060, 1378, 2756, 3445, 6890, 13780, 18521, 37042, 74084, 92605, 185210, 240773, 370420, 481546, 963092, 981613, 1203865, 1963226, 2407730, 3926452, 4815460, 4908065, 9816130, 12760969, 19632260, 25521938, 51043876, 63804845, 127609690, 255219380]

約数ペア:

[(1, 255219380), (2, 127609690), (4, 63804845), (5, 51043876), (10, 25521938), (13, 19632260), (20, 12760969), (26, 9816130), (52, 4908065), (53, 4815460), (65, 3926452), (106, 2407730), (130, 1963226), (212, 1203865), (260, 981613), (265, 963092), (530, 481546), (689, 370420), (1060, 240773), (1378, 185210), (2756, 92605), (3445, 74084), (6890, 37042), (13780, 18521)]