78751840

素因数分解:

$2^5\times 5^1\times {\mathrm{139}}^1\times {\mathrm{3541}}^1$

素因数の和:3695

約数の個数: 48

約数和(自身を含む): 187442640

約数和(自身を除く): 108690800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 139, 160, 278, 556, 695, 1112, 1390, 2224, 2780, 3541, 4448, 5560, 7082, 11120, 14164, 17705, 22240, 28328, 35410, 56656, 70820, 113312, 141640, 283280, 492199, 566560, 984398, 1968796, 2460995, 3937592, 4921990, 7875184, 9843980, 15750368, 19687960, 39375920, 78751840]

約数ペア:

[(1, 78751840), (2, 39375920), (4, 19687960), (5, 15750368), (8, 9843980), (10, 7875184), (16, 4921990), (20, 3937592), (32, 2460995), (40, 1968796), (80, 984398), (139, 566560), (160, 492199), (278, 283280), (556, 141640), (695, 113312), (1112, 70820), (1390, 56656), (2224, 35410), (2780, 28328), (3541, 22240), (4448, 17705), (5560, 14164), (7082, 11120)]