28468045120

素因数分解:

$2^6\times 5^1\times {\mathrm{139}}^1\times {\mathrm{640019}}^1$

素因数の和:640175

約数の個数: 56

約数和(自身を含む): 68277333600

約数和(自身を除く): 39809288480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 139, 160, 278, 320, 556, 695, 1112, 1390, 2224, 2780, 4448, 5560, 8896, 11120, 22240, 44480, 640019, 1280038, 2560076, 3200095, 5120152, 6400190, 10240304, 12800380, 20480608, 25600760, 40961216, 51201520, 88962641, 102403040, 177925282, 204806080, 355850564, 444813205, 711701128, 889626410, 1423402256, 1779252820, 2846804512, 3558505640, 5693609024, 7117011280, 14234022560, 28468045120]

約数ペア:

[(1, 28468045120), (2, 14234022560), (4, 7117011280), (5, 5693609024), (8, 3558505640), (10, 2846804512), (16, 1779252820), (20, 1423402256), (32, 889626410), (40, 711701128), (64, 444813205), (80, 355850564), (139, 204806080), (160, 177925282), (278, 102403040), (320, 88962641), (556, 51201520), (695, 40961216), (1112, 25600760), (1390, 20480608), (2224, 12800380), (2780, 10240304), (4448, 6400190), (5560, 5120152), (8896, 3200095), (11120, 2560076), (22240, 1280038), (44480, 640019)]