123258928

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31189}}^1$

素因数の和:31229

約数の個数: 40

約数和(自身を含む): 270729200

約数和(自身を除く): 147470272

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1976, 3952, 31189, 62378, 124756, 249512, 405457, 499024, 592591, 810914, 1185182, 1621828, 2370364, 3243656, 4740728, 6487312, 7703683, 9481456, 15407366, 30814732, 61629464, 123258928]

約数ペア:

[(1, 123258928), (2, 61629464), (4, 30814732), (8, 15407366), (13, 9481456), (16, 7703683), (19, 6487312), (26, 4740728), (38, 3243656), (52, 2370364), (76, 1621828), (104, 1185182), (152, 810914), (208, 592591), (247, 499024), (304, 405457), (494, 249512), (988, 124756), (1976, 62378), (3952, 31189)]