81557236.000000000

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{80669}}^1$

素因数の和:80693

約数の個数: 54

約数和(自身を含む): 418435290

約数和(自身を除く): 276135174

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 63, 84, 98, 126, 147, 196, 252, 294, 441, 588, 882, 1764, 80669, 161338, 242007, 322676, 484014, 564683, 726021, 968028, 1129366, 1452042, 1694049, 2258732, 2904084, 3388098, 3952781, 5082147, 6776196, 7905562, 10164294, 11858343, 15811124, 20328588, 23716686, 35575029, 47433372, 71150058, 142300116]

約数ペア:

[(1, 142300116), (2, 71150058), (3, 47433372), (4, 35575029), (6, 23716686), (7, 20328588), (9, 15811124), (12, 11858343), (14, 10164294), (18, 7905562), (21, 6776196), (28, 5082147), (36, 3952781), (42, 3388098), (49, 2904084), (63, 2258732), (84, 1694049), (98, 1452042), (126, 1129366), (147, 968028), (196, 726021), (252, 564683), (294, 484014), (441, 322676), (588, 242007), (882, 161338), (1764, 80669)]