20213304720

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{12031729}}^1$

素因数の和:12031752

約数の個数: 80

約数和(自身を含む): 71612856960

約数和(自身を除く): 51399552240

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 12031729, 24063458, 36095187, 48126916, 60158645, 72190374, 84222103, 96253832, 120317290, 144380748, 168444206, 180475935, 192507664, 240634580, 252666309, 288761496, 336888412, 360951870, 421110515, 481269160, 505332618, 577522992, 673776824, 721903740, 842221030, 962538320, 1010665236, 1263331545, 1347553648, 1443807480, 1684442060, 2021330472, 2526663090, 2887614960, 3368884120, 4042660944, 5053326180, 6737768240, 10106652360, 20213304720]

約数ペア:

[(1, 20213304720), (2, 10106652360), (3, 6737768240), (4, 5053326180), (5, 4042660944), (6, 3368884120), (7, 2887614960), (8, 2526663090), (10, 2021330472), (12, 1684442060), (14, 1443807480), (15, 1347553648), (16, 1263331545), (20, 1010665236), (21, 962538320), (24, 842221030), (28, 721903740), (30, 673776824), (35, 577522992), (40, 505332618), (42, 481269160), (48, 421110515), (56, 360951870), (60, 336888412), (70, 288761496), (80, 252666309), (84, 240634580), (105, 192507664), (112, 180475935), (120, 168444206), (140, 144380748), (168, 120317290), (210, 96253832), (240, 84222103), (280, 72190374), (336, 60158645), (420, 48126916), (560, 36095187), (840, 24063458), (1680, 12031729)]