20478360

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{24379}}^1$

素因数の和:24400

約数の個数: 64

約数和(自身を含む): 70214400

約数和(自身を除く): 49736040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 24379, 48758, 73137, 97516, 121895, 146274, 170653, 195032, 243790, 292548, 341306, 365685, 487580, 511959, 585096, 682612, 731370, 853265, 975160, 1023918, 1365224, 1462740, 1706530, 2047836, 2559795, 2925480, 3413060, 4095672, 5119590, 6826120, 10239180, 20478360]

約数ペア:

[(1, 20478360), (2, 10239180), (3, 6826120), (4, 5119590), (5, 4095672), (6, 3413060), (7, 2925480), (8, 2559795), (10, 2047836), (12, 1706530), (14, 1462740), (15, 1365224), (20, 1023918), (21, 975160), (24, 853265), (28, 731370), (30, 682612), (35, 585096), (40, 511959), (42, 487580), (56, 365685), (60, 341306), (70, 292548), (84, 243790), (105, 195032), (120, 170653), (140, 146274), (168, 121895), (210, 97516), (280, 73137), (420, 48758), (840, 24379)]