274697020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{4111}}^1$

素因数の和:4390

約数の個数: 48

約数和(自身を含む): 623806848

約数和(自身を除く): 349109828

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 257, 260, 514, 1028, 1285, 2570, 3341, 4111, 5140, 6682, 8222, 13364, 16444, 16705, 20555, 33410, 41110, 53443, 66820, 82220, 106886, 213772, 267215, 534430, 1056527, 1068860, 2113054, 4226108, 5282635, 10565270, 13734851, 21130540, 27469702, 54939404, 68674255, 137348510, 274697020]

約数ペア:

[(1, 274697020), (2, 137348510), (4, 68674255), (5, 54939404), (10, 27469702), (13, 21130540), (20, 13734851), (26, 10565270), (52, 5282635), (65, 4226108), (130, 2113054), (257, 1068860), (260, 1056527), (514, 534430), (1028, 267215), (1285, 213772), (2570, 106886), (3341, 82220), (4111, 66820), (5140, 53443), (6682, 41110), (8222, 33410), (13364, 20555), (16444, 16705)]