19898060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{29}}^2$

素因数の和:100

約数の個数: 108

約数和(自身を含む): 53556048

約数和(自身を除く): 33657988

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 29, 35, 52, 58, 65, 70, 91, 116, 130, 140, 145, 169, 182, 203, 260, 290, 338, 364, 377, 406, 455, 580, 676, 754, 812, 841, 845, 910, 1015, 1183, 1508, 1682, 1690, 1820, 1885, 2030, 2366, 2639, 3364, 3380, 3770, 4060, 4205, 4732, 4901, 5278, 5887, 5915, 7540, 8410, 9802, 10556, 10933, 11774, 11830, 13195, 16820, 19604, 21866, 23548, 23660, 24505, 26390, 29435, 34307, 43732, 49010, 52780, 54665, 58870, 68614, 76531, 98020, 109330, 117740, 137228, 142129, 153062, 171535, 218660, 284258, 306124, 343070, 382655, 568516, 686140, 710645, 765310, 994903, 1421290, 1530620, 1989806, 2842580, 3979612, 4974515, 9949030, 19898060]

約数ペア:

[(1, 19898060), (2, 9949030), (4, 4974515), (5, 3979612), (7, 2842580), (10, 1989806), (13, 1530620), (14, 1421290), (20, 994903), (26, 765310), (28, 710645), (29, 686140), (35, 568516), (52, 382655), (58, 343070), (65, 306124), (70, 284258), (91, 218660), (116, 171535), (130, 153062), (140, 142129), (145, 137228), (169, 117740), (182, 109330), (203, 98020), (260, 76531), (290, 68614), (338, 58870), (364, 54665), (377, 52780), (406, 49010), (455, 43732), (580, 34307), (676, 29435), (754, 26390), (812, 24505), (841, 23660), (845, 23548), (910, 21866), (1015, 19604), (1183, 16820), (1508, 13195), (1682, 11830), (1690, 11774), (1820, 10933), (1885, 10556), (2030, 9802), (2366, 8410), (2639, 7540), (3364, 5915), (3380, 5887), (3770, 5278), (4060, 4901), (4205, 4732)]