28747960

素因数分解:

$2^3\times 5^1\times {\mathrm{461}}^1\times {\mathrm{1559}}^1$

素因数の和:2031

約数の個数: 32

約数和(自身を含む): 64864800

約数和(自身を除く): 36116840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 461, 922, 1559, 1844, 2305, 3118, 3688, 4610, 6236, 7795, 9220, 12472, 15590, 18440, 31180, 62360, 718699, 1437398, 2874796, 3593495, 5749592, 7186990, 14373980, 28747960]

約数ペア:

[(1, 28747960), (2, 14373980), (4, 7186990), (5, 5749592), (8, 3593495), (10, 2874796), (20, 1437398), (40, 718699), (461, 62360), (922, 31180), (1559, 18440), (1844, 15590), (2305, 12472), (3118, 9220), (3688, 7795), (4610, 6236)]