12378905

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{79}}^1$

素因数の和:150

約数の個数: 48

約数和(自身を含む): 19407360

約数和(自身を除く): 7028455

約数列:

[1, 5, 7, 11, 35, 37, 55, 77, 79, 121, 185, 259, 385, 395, 407, 553, 605, 847, 869, 1295, 2035, 2765, 2849, 2923, 4235, 4345, 4477, 6083, 9559, 14245, 14615, 20461, 22385, 30415, 31339, 32153, 47795, 66913, 102305, 156695, 160765, 225071, 334565, 353683, 1125355, 1768415, 2475781, 12378905]

約数ペア:

[(1, 12378905), (5, 2475781), (7, 1768415), (11, 1125355), (35, 353683), (37, 334565), (55, 225071), (77, 160765), (79, 156695), (121, 102305), (185, 66913), (259, 47795), (385, 32153), (395, 31339), (407, 30415), (553, 22385), (605, 20461), (847, 14615), (869, 14245), (1295, 9559), (2035, 6083), (2765, 4477), (2849, 4345), (2923, 4235)]