30938620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{359}}^1$

素因数の和:538

約数の個数: 48

約数和(自身を含む): 67737600

約数和(自身を除く): 36798980

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 139, 155, 278, 310, 359, 556, 620, 695, 718, 1390, 1436, 1795, 2780, 3590, 4309, 7180, 8618, 11129, 17236, 21545, 22258, 43090, 44516, 49901, 55645, 86180, 99802, 111290, 199604, 222580, 249505, 499010, 998020, 1546931, 3093862, 6187724, 7734655, 15469310, 30938620]

約数ペア:

[(1, 30938620), (2, 15469310), (4, 7734655), (5, 6187724), (10, 3093862), (20, 1546931), (31, 998020), (62, 499010), (124, 249505), (139, 222580), (155, 199604), (278, 111290), (310, 99802), (359, 86180), (556, 55645), (620, 49901), (695, 44516), (718, 43090), (1390, 22258), (1436, 21545), (1795, 17236), (2780, 11129), (3590, 8618), (4309, 7180)]