4320020

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{3541}}^1$

素因数の和:3611

約数の個数: 24

約数和(自身を含む): 9223368

約数和(自身を除く): 4903348

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 3541, 7082, 14164, 17705, 35410, 70820, 216001, 432002, 864004, 1080005, 2160010, 4320020]

約数ペア:

[(1, 4320020), (2, 2160010), (4, 1080005), (5, 864004), (10, 432002), (20, 216001), (61, 70820), (122, 35410), (244, 17705), (305, 14164), (610, 7082), (1220, 3541)]