11881580

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{9739}}^1$

素因数の和:9809

約数の個数: 24

約数和(自身を含む): 25362960

約数和(自身を除く): 13481380

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 9739, 19478, 38956, 48695, 97390, 194780, 594079, 1188158, 2376316, 2970395, 5940790, 11881580]

約数ペア:

[(1, 11881580), (2, 5940790), (4, 2970395), (5, 2376316), (10, 1188158), (20, 594079), (61, 194780), (122, 97390), (244, 48695), (305, 38956), (610, 19478), (1220, 9739)]