28401520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{1237}}^1$

素因数の和:1298

約数の個数: 80

約数和(自身を含む): 77370048

約数和(自身を除く): 48968528

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 41, 56, 70, 80, 82, 112, 140, 164, 205, 280, 287, 328, 410, 560, 574, 656, 820, 1148, 1237, 1435, 1640, 2296, 2474, 2870, 3280, 4592, 4948, 5740, 6185, 8659, 9896, 11480, 12370, 17318, 19792, 22960, 24740, 34636, 43295, 49480, 50717, 69272, 86590, 98960, 101434, 138544, 173180, 202868, 253585, 346360, 355019, 405736, 507170, 692720, 710038, 811472, 1014340, 1420076, 1775095, 2028680, 2840152, 3550190, 4057360, 5680304, 7100380, 14200760, 28401520]

約数ペア:

[(1, 28401520), (2, 14200760), (4, 7100380), (5, 5680304), (7, 4057360), (8, 3550190), (10, 2840152), (14, 2028680), (16, 1775095), (20, 1420076), (28, 1014340), (35, 811472), (40, 710038), (41, 692720), (56, 507170), (70, 405736), (80, 355019), (82, 346360), (112, 253585), (140, 202868), (164, 173180), (205, 138544), (280, 101434), (287, 98960), (328, 86590), (410, 69272), (560, 50717), (574, 49480), (656, 43295), (820, 34636), (1148, 24740), (1237, 22960), (1435, 19792), (1640, 17318), (2296, 12370), (2474, 11480), (2870, 9896), (3280, 8659), (4592, 6185), (4948, 5740)]