12456421160

素因数分解:

$2^3\times 5^1\times {\mathrm{19609}}^1\times {\mathrm{15881}}^1$

素因数の和:35501

約数の個数: 32

約数和(自身を含む): 28030141800

約数和(自身を除く): 15573720640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 15881, 19609, 31762, 39218, 63524, 78436, 79405, 98045, 127048, 156872, 158810, 196090, 317620, 392180, 635240, 784360, 311410529, 622821058, 1245642116, 1557052645, 2491284232, 3114105290, 6228210580, 12456421160]

約数ペア:

[(1, 12456421160), (2, 6228210580), (4, 3114105290), (5, 2491284232), (8, 1557052645), (10, 1245642116), (20, 622821058), (40, 311410529), (15881, 784360), (19609, 635240), (31762, 392180), (39218, 317620), (63524, 196090), (78436, 158810), (79405, 156872), (98045, 127048)]