280027720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1000099}}^1$

素因数の和:1000117

約数の個数: 32

約数和(自身を含む): 720072000

約数和(自身を除く): 440044280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1000099, 2000198, 4000396, 5000495, 7000693, 8000792, 10000990, 14001386, 20001980, 28002772, 35003465, 40003960, 56005544, 70006930, 140013860, 280027720]

約数ペア:

[(1, 280027720), (2, 140013860), (4, 70006930), (5, 56005544), (7, 40003960), (8, 35003465), (10, 28002772), (14, 20001980), (20, 14001386), (28, 10000990), (35, 8000792), (40, 7000693), (56, 5000495), (70, 4000396), (140, 2000198), (280, 1000099)]