71478580

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{1429}}^1$

素因数の和:1540

約数の個数: 48

約数和(自身を含む): 156396240

約数和(自身を除く): 84917660

約数列:

[1, 2, 4, 5, 10, 20, 41, 61, 82, 122, 164, 205, 244, 305, 410, 610, 820, 1220, 1429, 2501, 2858, 5002, 5716, 7145, 10004, 12505, 14290, 25010, 28580, 50020, 58589, 87169, 117178, 174338, 234356, 292945, 348676, 435845, 585890, 871690, 1171780, 1743380, 3573929, 7147858, 14295716, 17869645, 35739290, 71478580]

約数ペア:

[(1, 71478580), (2, 35739290), (4, 17869645), (5, 14295716), (10, 7147858), (20, 3573929), (41, 1743380), (61, 1171780), (82, 871690), (122, 585890), (164, 435845), (205, 348676), (244, 292945), (305, 234356), (410, 174338), (610, 117178), (820, 87169), (1220, 58589), (1429, 50020), (2501, 28580), (2858, 25010), (5002, 14290), (5716, 12505), (7145, 10004)]