20081775

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1319}}^1$

素因数の和:1368

約数の個数: 48

約数和(自身を含む): 39283200

約数和(自身を除く): 19201425

約数列:

[1, 3, 5, 7, 15, 21, 25, 29, 35, 75, 87, 105, 145, 175, 203, 435, 525, 609, 725, 1015, 1319, 2175, 3045, 3957, 5075, 6595, 9233, 15225, 19785, 27699, 32975, 38251, 46165, 98925, 114753, 138495, 191255, 230825, 267757, 573765, 692475, 803271, 956275, 1338785, 2868825, 4016355, 6693925, 20081775]

約数ペア:

[(1, 20081775), (3, 6693925), (5, 4016355), (7, 2868825), (15, 1338785), (21, 956275), (25, 803271), (29, 692475), (35, 573765), (75, 267757), (87, 230825), (105, 191255), (145, 138495), (175, 114753), (203, 98925), (435, 46165), (525, 38251), (609, 32975), (725, 27699), (1015, 19785), (1319, 15225), (2175, 9233), (3045, 6595), (3957, 5075)]