20365760

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2053}}^1$

素因数の和:2101

約数の個数: 56

約数和(自身を含む): 50084736

約数和(自身を除く): 29718976

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1984, 2053, 2480, 4106, 4960, 8212, 9920, 10265, 16424, 20530, 32848, 41060, 63643, 65696, 82120, 127286, 131392, 164240, 254572, 318215, 328480, 509144, 636430, 656960, 1018288, 1272860, 2036576, 2545720, 4073152, 5091440, 10182880, 20365760]

約数ペア:

[(1, 20365760), (2, 10182880), (4, 5091440), (5, 4073152), (8, 2545720), (10, 2036576), (16, 1272860), (20, 1018288), (31, 656960), (32, 636430), (40, 509144), (62, 328480), (64, 318215), (80, 254572), (124, 164240), (155, 131392), (160, 127286), (248, 82120), (310, 65696), (320, 63643), (496, 41060), (620, 32848), (992, 20530), (1240, 16424), (1984, 10265), (2053, 9920), (2480, 8212), (4106, 4960)]