388222020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{2156789}}^1$

素因数の和:2156804

約数の個数: 36

約数和(自身を含む): 1177607340

約数和(自身を除く): 789385320

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 2156789, 4313578, 6470367, 8627156, 10783945, 12940734, 19411101, 21567890, 25881468, 32351835, 38822202, 43135780, 64703670, 77644404, 97055505, 129407340, 194111010, 388222020]

約数ペア:

[(1, 388222020), (2, 194111010), (3, 129407340), (4, 97055505), (5, 77644404), (6, 64703670), (9, 43135780), (10, 38822202), (12, 32351835), (15, 25881468), (18, 21567890), (20, 19411101), (30, 12940734), (36, 10783945), (45, 8627156), (60, 6470367), (90, 4313578), (180, 2156789)]