1986877780

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{43591}}^1$

素因数の和:43696

約数の個数: 48

約数和(自身を含む): 4350132864

約数和(自身を除く): 2363255084

約数列:

[1, 2, 4, 5, 10, 20, 43, 53, 86, 106, 172, 212, 215, 265, 430, 530, 860, 1060, 2279, 4558, 9116, 11395, 22790, 43591, 45580, 87182, 174364, 217955, 435910, 871820, 1874413, 2310323, 3748826, 4620646, 7497652, 9241292, 9372065, 11551615, 18744130, 23103230, 37488260, 46206460, 99343889, 198687778, 397375556, 496719445, 993438890, 1986877780]

約数ペア:

[(1, 1986877780), (2, 993438890), (4, 496719445), (5, 397375556), (10, 198687778), (20, 99343889), (43, 46206460), (53, 37488260), (86, 23103230), (106, 18744130), (172, 11551615), (212, 9372065), (215, 9241292), (265, 7497652), (430, 4620646), (530, 3748826), (860, 2310323), (1060, 1874413), (2279, 871820), (4558, 435910), (9116, 217955), (11395, 174364), (22790, 87182), (43591, 45580)]