255719997

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{5167}}^1$

素因数の和:5239

約数の個数: 40

約数和(自身を含む): 420220416

約数和(自身を除く): 164500419

約数列:

[1, 3, 9, 13, 27, 39, 47, 81, 117, 141, 351, 423, 611, 1053, 1269, 1833, 3807, 5167, 5499, 15501, 16497, 46503, 49491, 67171, 139509, 201513, 242849, 418527, 604539, 728547, 1813617, 2185641, 3157037, 5440851, 6556923, 9471111, 19670769, 28413333, 85239999, 255719997]

約数ペア:

[(1, 255719997), (3, 85239999), (9, 28413333), (13, 19670769), (27, 9471111), (39, 6556923), (47, 5440851), (81, 3157037), (117, 2185641), (141, 1813617), (351, 728547), (423, 604539), (611, 418527), (1053, 242849), (1269, 201513), (1833, 139509), (3807, 67171), (5167, 49491), (5499, 46503), (15501, 16497)]