20147795600

素因数分解:

$2^4\times 5^2\times {\mathrm{73}}^1\times {\mathrm{239}}^1\times {\mathrm{2887}}^1$

素因数の和:3217

約数の個数: 120

約数和(自身を含む): 49290535680

約数和(自身を除く): 29142740080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 73, 80, 100, 146, 200, 239, 292, 365, 400, 478, 584, 730, 956, 1168, 1195, 1460, 1825, 1912, 2390, 2887, 2920, 3650, 3824, 4780, 5774, 5840, 5975, 7300, 9560, 11548, 11950, 14435, 14600, 17447, 19120, 23096, 23900, 28870, 29200, 34894, 46192, 47800, 57740, 69788, 72175, 87235, 95600, 115480, 139576, 144350, 174470, 210751, 230960, 279152, 288700, 348940, 421502, 436175, 577400, 689993, 697880, 843004, 872350, 1053755, 1154800, 1379986, 1395760, 1686008, 1744700, 2107510, 2759972, 3372016, 3449965, 3489400, 4215020, 5268775, 5519944, 6899930, 6978800, 8430040, 10537550, 11039888, 13799860, 16860080, 17249825, 21075100, 27599720, 34499650, 42150200, 50369489, 55199440, 68999300, 84300400, 100738978, 137998600, 201477956, 251847445, 275997200, 402955912, 503694890, 805911824, 1007389780, 1259237225, 2014779560, 2518474450, 4029559120, 5036948900, 10073897800, 20147795600]

約数ペア:

[(1, 20147795600), (2, 10073897800), (4, 5036948900), (5, 4029559120), (8, 2518474450), (10, 2014779560), (16, 1259237225), (20, 1007389780), (25, 805911824), (40, 503694890), (50, 402955912), (73, 275997200), (80, 251847445), (100, 201477956), (146, 137998600), (200, 100738978), (239, 84300400), (292, 68999300), (365, 55199440), (400, 50369489), (478, 42150200), (584, 34499650), (730, 27599720), (956, 21075100), (1168, 17249825), (1195, 16860080), (1460, 13799860), (1825, 11039888), (1912, 10537550), (2390, 8430040), (2887, 6978800), (2920, 6899930), (3650, 5519944), (3824, 5268775), (4780, 4215020), (5774, 3489400), (5840, 3449965), (5975, 3372016), (7300, 2759972), (9560, 2107510), (11548, 1744700), (11950, 1686008), (14435, 1395760), (14600, 1379986), (17447, 1154800), (19120, 1053755), (23096, 872350), (23900, 843004), (28870, 697880), (29200, 689993), (34894, 577400), (46192, 436175), (47800, 421502), (57740, 348940), (69788, 288700), (72175, 279152), (87235, 230960), (95600, 210751), (115480, 174470), (139576, 144350)]