20598130

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{127}}^1\times {\mathrm{331}}^1$

素因数の和:479

約数の個数: 48

約数和(自身を含む): 43600896

約数和(自身を除く): 23002766

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 127, 245, 254, 331, 490, 635, 662, 889, 1270, 1655, 1778, 2317, 3310, 4445, 4634, 6223, 8890, 11585, 12446, 16219, 23170, 31115, 32438, 42037, 62230, 81095, 84074, 162190, 210185, 294259, 420370, 588518, 1471295, 2059813, 2942590, 4119626, 10299065, 20598130]

約数ペア:

[(1, 20598130), (2, 10299065), (5, 4119626), (7, 2942590), (10, 2059813), (14, 1471295), (35, 588518), (49, 420370), (70, 294259), (98, 210185), (127, 162190), (245, 84074), (254, 81095), (331, 62230), (490, 42037), (635, 32438), (662, 31115), (889, 23170), (1270, 16219), (1655, 12446), (1778, 11585), (2317, 8890), (3310, 6223), (4445, 4634)]