78898020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{77351}}^1$

素因数の和:77380

約数の個数: 48

約数和(自身を含む): 233912448

約数和(自身を除く): 155014428

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 77351, 154702, 232053, 309404, 386755, 464106, 773510, 928212, 1160265, 1314967, 1547020, 2320530, 2629934, 3944901, 4641060, 5259868, 6574835, 7889802, 13149670, 15779604, 19724505, 26299340, 39449010, 78898020]

約数ペア:

[(1, 78898020), (2, 39449010), (3, 26299340), (4, 19724505), (5, 15779604), (6, 13149670), (10, 7889802), (12, 6574835), (15, 5259868), (17, 4641060), (20, 3944901), (30, 2629934), (34, 2320530), (51, 1547020), (60, 1314967), (68, 1160265), (85, 928212), (102, 773510), (170, 464106), (204, 386755), (255, 309404), (340, 232053), (510, 154702), (1020, 77351)]