128402778

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{2243}}^1$

素因数の和:2331

約数の個数: 64

約数和(自身を含む): 310210560

約数和(自身を除く): 181807782

約数列:

[1, 2, 3, 6, 7, 14, 21, 29, 42, 47, 58, 87, 94, 141, 174, 203, 282, 329, 406, 609, 658, 987, 1218, 1363, 1974, 2243, 2726, 4089, 4486, 6729, 8178, 9541, 13458, 15701, 19082, 28623, 31402, 47103, 57246, 65047, 94206, 105421, 130094, 195141, 210842, 316263, 390282, 455329, 632526, 737947, 910658, 1365987, 1475894, 2213841, 2731974, 3057209, 4427682, 6114418, 9171627, 18343254, 21400463, 42800926, 64201389, 128402778]

約数ペア:

[(1, 128402778), (2, 64201389), (3, 42800926), (6, 21400463), (7, 18343254), (14, 9171627), (21, 6114418), (29, 4427682), (42, 3057209), (47, 2731974), (58, 2213841), (87, 1475894), (94, 1365987), (141, 910658), (174, 737947), (203, 632526), (282, 455329), (329, 390282), (406, 316263), (609, 210842), (658, 195141), (987, 130094), (1218, 105421), (1363, 94206), (1974, 65047), (2243, 57246), (2726, 47103), (4089, 31402), (4486, 28623), (6729, 19082), (8178, 15701), (9541, 13458)]