20244280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{4253}}^1$

素因数の和:4288

約数の個数: 64

約数和(自身を含む): 55131840

約数和(自身を除く): 34887560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 56, 68, 70, 85, 119, 136, 140, 170, 238, 280, 340, 476, 595, 680, 952, 1190, 2380, 4253, 4760, 8506, 17012, 21265, 29771, 34024, 42530, 59542, 72301, 85060, 119084, 144602, 148855, 170120, 238168, 289204, 297710, 361505, 506107, 578408, 595420, 723010, 1012214, 1190840, 1446020, 2024428, 2530535, 2892040, 4048856, 5061070, 10122140, 20244280]

約数ペア:

[(1, 20244280), (2, 10122140), (4, 5061070), (5, 4048856), (7, 2892040), (8, 2530535), (10, 2024428), (14, 1446020), (17, 1190840), (20, 1012214), (28, 723010), (34, 595420), (35, 578408), (40, 506107), (56, 361505), (68, 297710), (70, 289204), (85, 238168), (119, 170120), (136, 148855), (140, 144602), (170, 119084), (238, 85060), (280, 72301), (340, 59542), (476, 42530), (595, 34024), (680, 29771), (952, 21265), (1190, 17012), (2380, 8506), (4253, 4760)]