4891645

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1$

素因数の和:217

約数の個数: 32

約数和(自身を含む): 7004160

約数和(自身を除く): 2112515

約数列:

[1, 5, 11, 19, 31, 55, 95, 151, 155, 209, 341, 589, 755, 1045, 1661, 1705, 2869, 2945, 4681, 6479, 8305, 14345, 23405, 31559, 32395, 51491, 88939, 157795, 257455, 444695, 978329, 4891645]

約数ペア:

[(1, 4891645), (5, 978329), (11, 444695), (19, 257455), (31, 157795), (55, 88939), (95, 51491), (151, 32395), (155, 31559), (209, 23405), (341, 14345), (589, 8305), (755, 6479), (1045, 4681), (1661, 2945), (1705, 2869)]