20399736

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3917}}^1$

素因数の和:3964

約数の個数: 64

約数和(自身を含む): 60180480

約数和(自身を除く): 39780744

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 31, 42, 56, 62, 84, 93, 124, 168, 186, 217, 248, 372, 434, 651, 744, 868, 1302, 1736, 2604, 3917, 5208, 7834, 11751, 15668, 23502, 27419, 31336, 47004, 54838, 82257, 94008, 109676, 121427, 164514, 219352, 242854, 329028, 364281, 485708, 658056, 728562, 849989, 971416, 1457124, 1699978, 2549967, 2914248, 3399956, 5099934, 6799912, 10199868, 20399736]

約数ペア:

[(1, 20399736), (2, 10199868), (3, 6799912), (4, 5099934), (6, 3399956), (7, 2914248), (8, 2549967), (12, 1699978), (14, 1457124), (21, 971416), (24, 849989), (28, 728562), (31, 658056), (42, 485708), (56, 364281), (62, 329028), (84, 242854), (93, 219352), (124, 164514), (168, 121427), (186, 109676), (217, 94008), (248, 82257), (372, 54838), (434, 47004), (651, 31336), (744, 27419), (868, 23502), (1302, 15668), (1736, 11751), (2604, 7834), (3917, 5208)]