18588700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{181}}^1$

素因数の和:287

約数の個数: 72

約数和(自身を含む): 44233280

約数和(自身を除く): 25644580

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 79, 100, 130, 158, 181, 260, 316, 325, 362, 395, 650, 724, 790, 905, 1027, 1300, 1580, 1810, 1975, 2054, 2353, 3620, 3950, 4108, 4525, 4706, 5135, 7900, 9050, 9412, 10270, 11765, 14299, 18100, 20540, 23530, 25675, 28598, 47060, 51350, 57196, 58825, 71495, 102700, 117650, 142990, 185887, 235300, 285980, 357475, 371774, 714950, 743548, 929435, 1429900, 1858870, 3717740, 4647175, 9294350, 18588700]

約数ペア:

[(1, 18588700), (2, 9294350), (4, 4647175), (5, 3717740), (10, 1858870), (13, 1429900), (20, 929435), (25, 743548), (26, 714950), (50, 371774), (52, 357475), (65, 285980), (79, 235300), (100, 185887), (130, 142990), (158, 117650), (181, 102700), (260, 71495), (316, 58825), (325, 57196), (362, 51350), (395, 47060), (650, 28598), (724, 25675), (790, 23530), (905, 20540), (1027, 18100), (1300, 14299), (1580, 11765), (1810, 10270), (1975, 9412), (2054, 9050), (2353, 7900), (3620, 5135), (3950, 4706), (4108, 4525)]