557942780

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{463}}^1\times {\mathrm{677}}^1$

素因数の和:1238

約数の個数: 48

約数和(自身を含む): 1189157760

約数和(自身を除く): 631214980

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 463, 677, 890, 926, 1354, 1780, 1852, 2315, 2708, 3385, 4630, 6770, 9260, 13540, 41207, 60253, 82414, 120506, 164828, 206035, 241012, 301265, 313451, 412070, 602530, 626902, 824140, 1205060, 1253804, 1567255, 3134510, 6269020, 27897139, 55794278, 111588556, 139485695, 278971390, 557942780]

約数ペア:

[(1, 557942780), (2, 278971390), (4, 139485695), (5, 111588556), (10, 55794278), (20, 27897139), (89, 6269020), (178, 3134510), (356, 1567255), (445, 1253804), (463, 1205060), (677, 824140), (890, 626902), (926, 602530), (1354, 412070), (1780, 313451), (1852, 301265), (2315, 241012), (2708, 206035), (3385, 164828), (4630, 120506), (6770, 82414), (9260, 60253), (13540, 41207)]