281348500

素因数分解:

$2^2\times 5^3\times {\mathrm{97}}^1\times {\mathrm{5801}}^1$

素因数の和:5917

約数の個数: 48

約数和(自身を含む): 620906832

約数和(自身を除く): 339558332

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 97, 100, 125, 194, 250, 388, 485, 500, 970, 1940, 2425, 4850, 5801, 9700, 11602, 12125, 23204, 24250, 29005, 48500, 58010, 116020, 145025, 290050, 562697, 580100, 725125, 1125394, 1450250, 2250788, 2813485, 2900500, 5626970, 11253940, 14067425, 28134850, 56269700, 70337125, 140674250, 281348500]

約数ペア:

[(1, 281348500), (2, 140674250), (4, 70337125), (5, 56269700), (10, 28134850), (20, 14067425), (25, 11253940), (50, 5626970), (97, 2900500), (100, 2813485), (125, 2250788), (194, 1450250), (250, 1125394), (388, 725125), (485, 580100), (500, 562697), (970, 290050), (1940, 145025), (2425, 116020), (4850, 58010), (5801, 48500), (9700, 29005), (11602, 24250), (12125, 23204)]