220174760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{423413}}^1$

素因数の和:423437

約数の個数: 32

約数和(自身を含む): 533501640

約数和(自身を除く): 313326880

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 423413, 846826, 1693652, 2117065, 3387304, 4234130, 5504369, 8468260, 11008738, 16936520, 22017476, 27521845, 44034952, 55043690, 110087380, 220174760]

約数ペア:

[(1, 220174760), (2, 110087380), (4, 55043690), (5, 44034952), (8, 27521845), (10, 22017476), (13, 16936520), (20, 11008738), (26, 8468260), (40, 5504369), (52, 4234130), (65, 3387304), (104, 2117065), (130, 1693652), (260, 846826), (520, 423413)]