84818420

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{10369}}^1$

素因数の和:10787

約数の個数: 24

約数和(自身を含む): 178571400

約数和(自身を除く): 93752980

約数列:

[1, 2, 4, 5, 10, 20, 409, 818, 1636, 2045, 4090, 8180, 10369, 20738, 41476, 51845, 103690, 207380, 4240921, 8481842, 16963684, 21204605, 42409210, 84818420]

約数ペア:

[(1, 84818420), (2, 42409210), (4, 21204605), (5, 16963684), (10, 8481842), (20, 4240921), (409, 207380), (818, 103690), (1636, 51845), (2045, 41476), (4090, 20738), (8180, 10369)]