204080440

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{164581}}^1$

素因数の和:164623

約数の個数: 32

約数和(自身を含む): 473996160

約数和(自身を除く): 269915720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 164581, 329162, 658324, 822905, 1316648, 1645810, 3291620, 5102011, 6583240, 10204022, 20408044, 25510055, 40816088, 51020110, 102040220, 204080440]

約数ペア:

[(1, 204080440), (2, 102040220), (4, 51020110), (5, 40816088), (8, 25510055), (10, 20408044), (20, 10204022), (31, 6583240), (40, 5102011), (62, 3291620), (124, 1645810), (155, 1316648), (248, 822905), (310, 658324), (620, 329162), (1240, 164581)]