661734928

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{78479}}^1$

素因数の和:78535

約数の個数: 40

約数和(自身を含む): 1401338880

約数和(自身を除く): 739603952

約数列:

[1, 2, 4, 8, 16, 17, 31, 34, 62, 68, 124, 136, 248, 272, 496, 527, 1054, 2108, 4216, 8432, 78479, 156958, 313916, 627832, 1255664, 1334143, 2432849, 2668286, 4865698, 5336572, 9731396, 10673144, 19462792, 21346288, 38925584, 41358433, 82716866, 165433732, 330867464, 661734928]

約数ペア:

[(1, 661734928), (2, 330867464), (4, 165433732), (8, 82716866), (16, 41358433), (17, 38925584), (31, 21346288), (34, 19462792), (62, 10673144), (68, 9731396), (124, 5336572), (136, 4865698), (248, 2668286), (272, 2432849), (496, 1334143), (527, 1255664), (1054, 627832), (2108, 313916), (4216, 156958), (8432, 78479)]