28848680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{523}}^1$

素因数の和:738

約数の個数: 64

約数和(自身を含む): 74701440

約数和(自身を除く): 45852760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 197, 280, 394, 523, 788, 985, 1046, 1379, 1576, 1970, 2092, 2615, 2758, 3661, 3940, 4184, 5230, 5516, 6895, 7322, 7880, 10460, 11032, 13790, 14644, 18305, 20920, 27580, 29288, 36610, 55160, 73220, 103031, 146440, 206062, 412124, 515155, 721217, 824248, 1030310, 1442434, 2060620, 2884868, 3606085, 4121240, 5769736, 7212170, 14424340, 28848680]

約数ペア:

[(1, 28848680), (2, 14424340), (4, 7212170), (5, 5769736), (7, 4121240), (8, 3606085), (10, 2884868), (14, 2060620), (20, 1442434), (28, 1030310), (35, 824248), (40, 721217), (56, 515155), (70, 412124), (140, 206062), (197, 146440), (280, 103031), (394, 73220), (523, 55160), (788, 36610), (985, 29288), (1046, 27580), (1379, 20920), (1576, 18305), (1970, 14644), (2092, 13790), (2615, 11032), (2758, 10460), (3661, 7880), (3940, 7322), (4184, 6895), (5230, 5516)]