20039567.000000000

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{486163}}^1$

素因数の和:486179

約数の個数: 40

約数和(自身を含む): 361706016

約数和(自身を除く): 245026896

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 486163, 972326, 1458489, 1944652, 2430815, 2916978, 3889304, 4861630, 5833956, 7292445, 7778608, 9723260, 11667912, 14584890, 19446520, 23335824, 29169780, 38893040, 58339560, 116679120]

約数ペア:

[(1, 116679120), (2, 58339560), (3, 38893040), (4, 29169780), (5, 23335824), (6, 19446520), (8, 14584890), (10, 11667912), (12, 9723260), (15, 7778608), (16, 7292445), (20, 5833956), (24, 4861630), (30, 3889304), (40, 2916978), (48, 2430815), (60, 1944652), (80, 1458489), (120, 972326), (240, 486163)]