42072580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{199}}^1$

素因数の和:281

約数の個数: 72

約数和(自身を含む): 100094400

約数和(自身を除く): 58021820

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 155, 199, 220, 310, 341, 398, 620, 682, 796, 961, 995, 1364, 1705, 1922, 1990, 2189, 3410, 3844, 3980, 4378, 4805, 6169, 6820, 8756, 9610, 10571, 10945, 12338, 19220, 21142, 21890, 24676, 30845, 42284, 43780, 52855, 61690, 67859, 105710, 123380, 135718, 191239, 211420, 271436, 339295, 382478, 678590, 764956, 956195, 1357180, 1912390, 2103629, 3824780, 4207258, 8414516, 10518145, 21036290, 42072580]

約数ペア:

[(1, 42072580), (2, 21036290), (4, 10518145), (5, 8414516), (10, 4207258), (11, 3824780), (20, 2103629), (22, 1912390), (31, 1357180), (44, 956195), (55, 764956), (62, 678590), (110, 382478), (124, 339295), (155, 271436), (199, 211420), (220, 191239), (310, 135718), (341, 123380), (398, 105710), (620, 67859), (682, 61690), (796, 52855), (961, 43780), (995, 42284), (1364, 30845), (1705, 24676), (1922, 21890), (1990, 21142), (2189, 19220), (3410, 12338), (3844, 10945), (3980, 10571), (4378, 9610), (4805, 8756), (6169, 6820)]