313624180

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{257069}}^1$

素因数の和:257139

約数の個数: 24

約数和(自身を含む): 669410280

約数和(自身を除く): 355786100

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 257069, 514138, 1028276, 1285345, 2570690, 5141380, 15681209, 31362418, 62724836, 78406045, 156812090, 313624180]

約数ペア:

[(1, 313624180), (2, 156812090), (4, 78406045), (5, 62724836), (10, 31362418), (20, 15681209), (61, 5141380), (122, 2570690), (244, 1285345), (305, 1028276), (610, 514138), (1220, 257069)]