219903380

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{379}}^1\times {\mathrm{433}}^1$

素因数の和:888

約数の個数: 48

約数和(自身を含む): 471011520

約数和(自身を除く): 251108140

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 379, 433, 670, 758, 866, 1340, 1516, 1732, 1895, 2165, 3790, 4330, 7580, 8660, 25393, 29011, 50786, 58022, 101572, 116044, 126965, 145055, 164107, 253930, 290110, 328214, 507860, 580220, 656428, 820535, 1641070, 3282140, 10995169, 21990338, 43980676, 54975845, 109951690, 219903380]

約数ペア:

[(1, 219903380), (2, 109951690), (4, 54975845), (5, 43980676), (10, 21990338), (20, 10995169), (67, 3282140), (134, 1641070), (268, 820535), (335, 656428), (379, 580220), (433, 507860), (670, 328214), (758, 290110), (866, 253930), (1340, 164107), (1516, 145055), (1732, 126965), (1895, 116044), (2165, 101572), (3790, 58022), (4330, 50786), (7580, 29011), (8660, 25393)]