71223988

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1$

素因数の和:205

約数の個数: 72

約数和(自身を含む): 145861632

約数和(自身を除く): 74637644

約数列:

[1, 2, 4, 11, 22, 31, 44, 47, 62, 94, 101, 121, 124, 188, 202, 242, 341, 404, 484, 517, 682, 1034, 1111, 1364, 1457, 2068, 2222, 2914, 3131, 3751, 4444, 4747, 5687, 5828, 6262, 7502, 9494, 11374, 12221, 12524, 15004, 16027, 18988, 22748, 24442, 32054, 34441, 48884, 52217, 64108, 68882, 104434, 137764, 147157, 176297, 208868, 294314, 352594, 378851, 574387, 588628, 705188, 757702, 1148774, 1515404, 1618727, 2297548, 3237454, 6474908, 17805997, 35611994, 71223988]

約数ペア:

[(1, 71223988), (2, 35611994), (4, 17805997), (11, 6474908), (22, 3237454), (31, 2297548), (44, 1618727), (47, 1515404), (62, 1148774), (94, 757702), (101, 705188), (121, 588628), (124, 574387), (188, 378851), (202, 352594), (242, 294314), (341, 208868), (404, 176297), (484, 147157), (517, 137764), (682, 104434), (1034, 68882), (1111, 64108), (1364, 52217), (1457, 48884), (2068, 34441), (2222, 32054), (2914, 24442), (3131, 22748), (3751, 18988), (4444, 16027), (4747, 15004), (5687, 12524), (5828, 12221), (6262, 11374), (7502, 9494)]