20906970

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{3433}}^1$

素因数の和:3479

約数の個数: 64

約数和(自身を含む): 59339520

約数和(自身を除く): 38432550

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 29, 30, 35, 42, 58, 70, 87, 105, 145, 174, 203, 210, 290, 406, 435, 609, 870, 1015, 1218, 2030, 3045, 3433, 6090, 6866, 10299, 17165, 20598, 24031, 34330, 48062, 51495, 72093, 99557, 102990, 120155, 144186, 199114, 240310, 298671, 360465, 497785, 597342, 696899, 720930, 995570, 1393798, 1493355, 2090697, 2986710, 3484495, 4181394, 6968990, 10453485, 20906970]

約数ペア:

[(1, 20906970), (2, 10453485), (3, 6968990), (5, 4181394), (6, 3484495), (7, 2986710), (10, 2090697), (14, 1493355), (15, 1393798), (21, 995570), (29, 720930), (30, 696899), (35, 597342), (42, 497785), (58, 360465), (70, 298671), (87, 240310), (105, 199114), (145, 144186), (174, 120155), (203, 102990), (210, 99557), (290, 72093), (406, 51495), (435, 48062), (609, 34330), (870, 24031), (1015, 20598), (1218, 17165), (2030, 10299), (3045, 6866), (3433, 6090)]