12400520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{28183}}^1$

素因数の和:28205

約数の個数: 32

約数和(自身を含む): 30438720

約数和(自身を除く): 18038200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 28183, 56366, 112732, 140915, 225464, 281830, 310013, 563660, 620026, 1127320, 1240052, 1550065, 2480104, 3100130, 6200260, 12400520]

約数ペア:

[(1, 12400520), (2, 6200260), (4, 3100130), (5, 2480104), (8, 1550065), (10, 1240052), (11, 1127320), (20, 620026), (22, 563660), (40, 310013), (44, 281830), (55, 225464), (88, 140915), (110, 112732), (220, 56366), (440, 28183)]