78516640

素因数分解:

$2^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{11969}}^1$

素因数の和:12025

約数の個数: 48

約数和(自身を含む): 190035720

約数和(自身を除く): 111519080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 80, 82, 160, 164, 205, 328, 410, 656, 820, 1312, 1640, 3280, 6560, 11969, 23938, 47876, 59845, 95752, 119690, 191504, 239380, 383008, 478760, 490729, 957520, 981458, 1915040, 1962916, 2453645, 3925832, 4907290, 7851664, 9814580, 15703328, 19629160, 39258320, 78516640]

約数ペア:

[(1, 78516640), (2, 39258320), (4, 19629160), (5, 15703328), (8, 9814580), (10, 7851664), (16, 4907290), (20, 3925832), (32, 2453645), (40, 1962916), (41, 1915040), (80, 981458), (82, 957520), (160, 490729), (164, 478760), (205, 383008), (328, 239380), (410, 191504), (656, 119690), (820, 95752), (1312, 59845), (1640, 47876), (3280, 23938), (6560, 11969)]