20581320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{7457}}^1$

素因数の和:7494

約数の個数: 64

約数和(自身を含む): 64437120

約数和(自身を除く): 43855800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 138, 184, 230, 276, 345, 460, 552, 690, 920, 1380, 2760, 7457, 14914, 22371, 29828, 37285, 44742, 59656, 74570, 89484, 111855, 149140, 171511, 178968, 223710, 298280, 343022, 447420, 514533, 686044, 857555, 894840, 1029066, 1372088, 1715110, 2058132, 2572665, 3430220, 4116264, 5145330, 6860440, 10290660, 20581320]

約数ペア:

[(1, 20581320), (2, 10290660), (3, 6860440), (4, 5145330), (5, 4116264), (6, 3430220), (8, 2572665), (10, 2058132), (12, 1715110), (15, 1372088), (20, 1029066), (23, 894840), (24, 857555), (30, 686044), (40, 514533), (46, 447420), (60, 343022), (69, 298280), (92, 223710), (115, 178968), (120, 171511), (138, 149140), (184, 111855), (230, 89484), (276, 74570), (345, 59656), (460, 44742), (552, 37285), (690, 29828), (920, 22371), (1380, 14914), (2760, 7457)]