65580940

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1\times {\mathrm{449}}^1$

素因数の和:634

約数の個数: 48

約数和(自身を含む): 141372000

約数和(自身を除く): 75791060

約数列:

[1, 2, 4, 5, 10, 20, 67, 109, 134, 218, 268, 335, 436, 449, 545, 670, 898, 1090, 1340, 1796, 2180, 2245, 4490, 7303, 8980, 14606, 29212, 30083, 36515, 48941, 60166, 73030, 97882, 120332, 146060, 150415, 195764, 244705, 300830, 489410, 601660, 978820, 3279047, 6558094, 13116188, 16395235, 32790470, 65580940]

約数ペア:

[(1, 65580940), (2, 32790470), (4, 16395235), (5, 13116188), (10, 6558094), (20, 3279047), (67, 978820), (109, 601660), (134, 489410), (218, 300830), (268, 244705), (335, 195764), (436, 150415), (449, 146060), (545, 120332), (670, 97882), (898, 73030), (1090, 60166), (1340, 48941), (1796, 36515), (2180, 30083), (2245, 29212), (4490, 14606), (7303, 8980)]