25409480

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{389}}^1$

素因数の和:494

約数の個数: 64

約数和(自身を含む): 60652800

約数和(自身を除く): 35243320

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 71, 92, 115, 142, 184, 230, 284, 355, 389, 460, 568, 710, 778, 920, 1420, 1556, 1633, 1945, 2840, 3112, 3266, 3890, 6532, 7780, 8165, 8947, 13064, 15560, 16330, 17894, 27619, 32660, 35788, 44735, 55238, 65320, 71576, 89470, 110476, 138095, 178940, 220952, 276190, 357880, 552380, 635237, 1104760, 1270474, 2540948, 3176185, 5081896, 6352370, 12704740, 25409480]

約数ペア:

[(1, 25409480), (2, 12704740), (4, 6352370), (5, 5081896), (8, 3176185), (10, 2540948), (20, 1270474), (23, 1104760), (40, 635237), (46, 552380), (71, 357880), (92, 276190), (115, 220952), (142, 178940), (184, 138095), (230, 110476), (284, 89470), (355, 71576), (389, 65320), (460, 55238), (568, 44735), (710, 35788), (778, 32660), (920, 27619), (1420, 17894), (1556, 16330), (1633, 15560), (1945, 13064), (2840, 8947), (3112, 8165), (3266, 7780), (3890, 6532)]