207831728

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1223}}^1$

素因数の和:1306

約数の個数: 80

約数和(自身を含む): 467470080

約数和(自身を除く): 259638352

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 43, 52, 76, 86, 104, 152, 172, 208, 247, 304, 344, 494, 559, 688, 817, 988, 1118, 1223, 1634, 1976, 2236, 2446, 3268, 3952, 4472, 4892, 6536, 8944, 9784, 10621, 13072, 15899, 19568, 21242, 23237, 31798, 42484, 46474, 52589, 63596, 84968, 92948, 105178, 127192, 169936, 185896, 210356, 254384, 302081, 371792, 420712, 604162, 683657, 841424, 999191, 1208324, 1367314, 1998382, 2416648, 2734628, 3996764, 4833296, 5469256, 7993528, 10938512, 12989483, 15987056, 25978966, 51957932, 103915864, 207831728]

約数ペア:

[(1, 207831728), (2, 103915864), (4, 51957932), (8, 25978966), (13, 15987056), (16, 12989483), (19, 10938512), (26, 7993528), (38, 5469256), (43, 4833296), (52, 3996764), (76, 2734628), (86, 2416648), (104, 1998382), (152, 1367314), (172, 1208324), (208, 999191), (247, 841424), (304, 683657), (344, 604162), (494, 420712), (559, 371792), (688, 302081), (817, 254384), (988, 210356), (1118, 185896), (1223, 169936), (1634, 127192), (1976, 105178), (2236, 92948), (2446, 84968), (3268, 63596), (3952, 52589), (4472, 46474), (4892, 42484), (6536, 31798), (8944, 23237), (9784, 21242), (10621, 19568), (13072, 15899)]