20280608680

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{137}}^1\times {\mathrm{38153}}^1$

素因数の和:38398

約数の個数: 64

約数和(自身を含む): 46439522640

約数和(自身を除く): 26158913960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 137, 194, 274, 388, 485, 548, 685, 776, 970, 1096, 1370, 1940, 2740, 3880, 5480, 13289, 26578, 38153, 53156, 66445, 76306, 106312, 132890, 152612, 190765, 265780, 305224, 381530, 531560, 763060, 1526120, 3700841, 5226961, 7401682, 10453922, 14803364, 18504205, 20907844, 26134805, 29606728, 37008410, 41815688, 52269610, 74016820, 104539220, 148033640, 209078440, 507015217, 1014030434, 2028060868, 2535076085, 4056121736, 5070152170, 10140304340, 20280608680]

約数ペア:

[(1, 20280608680), (2, 10140304340), (4, 5070152170), (5, 4056121736), (8, 2535076085), (10, 2028060868), (20, 1014030434), (40, 507015217), (97, 209078440), (137, 148033640), (194, 104539220), (274, 74016820), (388, 52269610), (485, 41815688), (548, 37008410), (685, 29606728), (776, 26134805), (970, 20907844), (1096, 18504205), (1370, 14803364), (1940, 10453922), (2740, 7401682), (3880, 5226961), (5480, 3700841), (13289, 1526120), (26578, 763060), (38153, 531560), (53156, 381530), (66445, 305224), (76306, 265780), (106312, 190765), (132890, 152612)]