78644500

素因数分解:

$2^2\times 5^3\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{181}}^1$

素因数の和:290

約数の個数: 96

約数和(自身を含む): 190794240

約数和(自身を除く): 112149740

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 79, 100, 110, 125, 158, 181, 220, 250, 275, 316, 362, 395, 500, 550, 724, 790, 869, 905, 1100, 1375, 1580, 1738, 1810, 1975, 1991, 2750, 3476, 3620, 3950, 3982, 4345, 4525, 5500, 7900, 7964, 8690, 9050, 9875, 9955, 14299, 17380, 18100, 19750, 19910, 21725, 22625, 28598, 39500, 39820, 43450, 45250, 49775, 57196, 71495, 86900, 90500, 99550, 108625, 142990, 157289, 199100, 217250, 248875, 285980, 314578, 357475, 434500, 497750, 629156, 714950, 786445, 995500, 1429900, 1572890, 1787375, 3145780, 3574750, 3932225, 7149500, 7864450, 15728900, 19661125, 39322250, 78644500]

約数ペア:

[(1, 78644500), (2, 39322250), (4, 19661125), (5, 15728900), (10, 7864450), (11, 7149500), (20, 3932225), (22, 3574750), (25, 3145780), (44, 1787375), (50, 1572890), (55, 1429900), (79, 995500), (100, 786445), (110, 714950), (125, 629156), (158, 497750), (181, 434500), (220, 357475), (250, 314578), (275, 285980), (316, 248875), (362, 217250), (395, 199100), (500, 157289), (550, 142990), (724, 108625), (790, 99550), (869, 90500), (905, 86900), (1100, 71495), (1375, 57196), (1580, 49775), (1738, 45250), (1810, 43450), (1975, 39820), (1991, 39500), (2750, 28598), (3476, 22625), (3620, 21725), (3950, 19910), (3982, 19750), (4345, 18100), (4525, 17380), (5500, 14299), (7900, 9955), (7964, 9875), (8690, 9050)]