20945640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{7589}}^1$

素因数の和:7626

約数の個数: 64

約数和(自身を含む): 65577600

約数和(自身を除く): 44631960

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, 7589, 15178, 22767, 30356, 37945, 45534, 60712, 75890, 91068, 113835, 151780, 174547, 182136, 227670, 303560, 349094, 455340, 523641, 698188, 872735, 910680, 1047282, 1396376, 1745470, 2094564, 2618205, 3490940, 4189128, 5236410, 6981880, 10472820, 20945640]

約数ペア:

[(1, 20945640), (2, 10472820), (3, 6981880), (4, 5236410), (5, 4189128), (6, 3490940), (8, 2618205), (10, 2094564), (12, 1745470), (15, 1396376), (20, 1047282), (23, 910680), (24, 872735), (30, 698188), (40, 523641), (46, 455340), (60, 349094), (69, 303560), (92, 227670), (115, 182136), (120, 174547), (138, 151780), (184, 113835), (230, 91068), (276, 75890), (345, 60712), (460, 45534), (552, 37945), (690, 30356), (920, 22767), (1380, 15178), (2760, 7589)]