171990728

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{7621}}^1$

素因数の和:7678

約数の個数: 64

約数和(自身を含む): 409758720

約数和(自身を除く): 237767992

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 31, 52, 56, 62, 91, 104, 124, 182, 217, 248, 364, 403, 434, 728, 806, 868, 1612, 1736, 2821, 3224, 5642, 7621, 11284, 15242, 22568, 30484, 53347, 60968, 99073, 106694, 198146, 213388, 236251, 396292, 426776, 472502, 693511, 792584, 945004, 1387022, 1653757, 1890008, 2774044, 3071263, 3307514, 5548088, 6142526, 6615028, 12285052, 13230056, 21498841, 24570104, 42997682, 85995364, 171990728]

約数ペア:

[(1, 171990728), (2, 85995364), (4, 42997682), (7, 24570104), (8, 21498841), (13, 13230056), (14, 12285052), (26, 6615028), (28, 6142526), (31, 5548088), (52, 3307514), (56, 3071263), (62, 2774044), (91, 1890008), (104, 1653757), (124, 1387022), (182, 945004), (217, 792584), (248, 693511), (364, 472502), (403, 426776), (434, 396292), (728, 236251), (806, 213388), (868, 198146), (1612, 106694), (1736, 99073), (2821, 60968), (3224, 53347), (5642, 30484), (7621, 22568), (11284, 15242)]