18179960

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{1259}}^1$

素因数の和:1308

約数の個数: 48

約数和(自身を含む): 43205400

約数和(自身を除く): 25025440

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 361, 380, 722, 760, 1259, 1444, 1805, 2518, 2888, 3610, 5036, 6295, 7220, 10072, 12590, 14440, 23921, 25180, 47842, 50360, 95684, 119605, 191368, 239210, 454499, 478420, 908998, 956840, 1817996, 2272495, 3635992, 4544990, 9089980, 18179960]

約数ペア:

[(1, 18179960), (2, 9089980), (4, 4544990), (5, 3635992), (8, 2272495), (10, 1817996), (19, 956840), (20, 908998), (38, 478420), (40, 454499), (76, 239210), (95, 191368), (152, 119605), (190, 95684), (361, 50360), (380, 47842), (722, 25180), (760, 23921), (1259, 14440), (1444, 12590), (1805, 10072), (2518, 7220), (2888, 6295), (3610, 5036)]