30638380

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{107}}^1\times {\mathrm{139}}^1$

素因数の和:358

約数の個数: 48

約数和(自身を含む): 66044160

約数和(自身を除く): 35405780

約数列:

[1, 2, 4, 5, 10, 20, 103, 107, 139, 206, 214, 278, 412, 428, 515, 535, 556, 695, 1030, 1070, 1390, 2060, 2140, 2780, 11021, 14317, 14873, 22042, 28634, 29746, 44084, 55105, 57268, 59492, 71585, 74365, 110210, 143170, 148730, 220420, 286340, 297460, 1531919, 3063838, 6127676, 7659595, 15319190, 30638380]

約数ペア:

[(1, 30638380), (2, 15319190), (4, 7659595), (5, 6127676), (10, 3063838), (20, 1531919), (103, 297460), (107, 286340), (139, 220420), (206, 148730), (214, 143170), (278, 110210), (412, 74365), (428, 71585), (515, 59492), (535, 57268), (556, 55105), (695, 44084), (1030, 29746), (1070, 28634), (1390, 22042), (2060, 14873), (2140, 14317), (2780, 11021)]