78235216

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{239}}^1\times {\mathrm{499}}^1$

素因数の和:787

約数の個数: 40

約数和(自身を含む): 156240000

約数和(自身を除く): 78004784

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 239, 328, 478, 499, 656, 956, 998, 1912, 1996, 3824, 3992, 7984, 9799, 19598, 20459, 39196, 40918, 78392, 81836, 119261, 156784, 163672, 238522, 327344, 477044, 954088, 1908176, 4889701, 9779402, 19558804, 39117608, 78235216]

約数ペア:

[(1, 78235216), (2, 39117608), (4, 19558804), (8, 9779402), (16, 4889701), (41, 1908176), (82, 954088), (164, 477044), (239, 327344), (328, 238522), (478, 163672), (499, 156784), (656, 119261), (956, 81836), (998, 78392), (1912, 40918), (1996, 39196), (3824, 20459), (3992, 19598), (7984, 9799)]