28515040

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{5749}}^1$

素因数の和:5795

約数の個数: 48

約数和(自身を含む): 69552000

約数和(自身を除く): 41036960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 992, 1240, 2480, 4960, 5749, 11498, 22996, 28745, 45992, 57490, 91984, 114980, 178219, 183968, 229960, 356438, 459920, 712876, 891095, 919840, 1425752, 1782190, 2851504, 3564380, 5703008, 7128760, 14257520, 28515040]

約数ペア:

[(1, 28515040), (2, 14257520), (4, 7128760), (5, 5703008), (8, 3564380), (10, 2851504), (16, 1782190), (20, 1425752), (31, 919840), (32, 891095), (40, 712876), (62, 459920), (80, 356438), (124, 229960), (155, 183968), (160, 178219), (248, 114980), (310, 91984), (496, 57490), (620, 45992), (992, 28745), (1240, 22996), (2480, 11498), (4960, 5749)]