31780854

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{401}}^1$

素因数の和:470

約数の個数: 96

約数和(自身を含む): 85790016

約数和(自身を除く): 54009162

約数列:

[1, 2, 3, 6, 7, 9, 14, 17, 18, 21, 34, 37, 42, 51, 63, 74, 102, 111, 119, 126, 153, 222, 238, 259, 306, 333, 357, 401, 518, 629, 666, 714, 777, 802, 1071, 1203, 1258, 1554, 1887, 2142, 2331, 2406, 2807, 3609, 3774, 4403, 4662, 5614, 5661, 6817, 7218, 8421, 8806, 11322, 13209, 13634, 14837, 16842, 20451, 25263, 26418, 29674, 39627, 40902, 44511, 47719, 50526, 61353, 79254, 89022, 95438, 103859, 122706, 133533, 143157, 207718, 252229, 267066, 286314, 311577, 429471, 504458, 623154, 756687, 858942, 934731, 1513374, 1765603, 1869462, 2270061, 3531206, 4540122, 5296809, 10593618, 15890427, 31780854]

約数ペア:

[(1, 31780854), (2, 15890427), (3, 10593618), (6, 5296809), (7, 4540122), (9, 3531206), (14, 2270061), (17, 1869462), (18, 1765603), (21, 1513374), (34, 934731), (37, 858942), (42, 756687), (51, 623154), (63, 504458), (74, 429471), (102, 311577), (111, 286314), (119, 267066), (126, 252229), (153, 207718), (222, 143157), (238, 133533), (259, 122706), (306, 103859), (333, 95438), (357, 89022), (401, 79254), (518, 61353), (629, 50526), (666, 47719), (714, 44511), (777, 40902), (802, 39627), (1071, 29674), (1203, 26418), (1258, 25263), (1554, 20451), (1887, 16842), (2142, 14837), (2331, 13634), (2406, 13209), (2807, 11322), (3609, 8806), (3774, 8421), (4403, 7218), (4662, 6817), (5614, 5661)]