1721460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2207}}^1$

素因数の和:2232

約数の個数: 48

約数和(自身を含む): 5193216

約数和(自身を除く): 3471756

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 2207, 4414, 6621, 8828, 11035, 13242, 22070, 26484, 28691, 33105, 44140, 57382, 66210, 86073, 114764, 132420, 143455, 172146, 286910, 344292, 430365, 573820, 860730, 1721460]

約数ペア:

[(1, 1721460), (2, 860730), (3, 573820), (4, 430365), (5, 344292), (6, 286910), (10, 172146), (12, 143455), (13, 132420), (15, 114764), (20, 86073), (26, 66210), (30, 57382), (39, 44140), (52, 33105), (60, 28691), (65, 26484), (78, 22070), (130, 13242), (156, 11035), (195, 8828), (260, 6621), (390, 4414), (780, 2207)]