128517396

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{127}}^1\times {\mathrm{1721}}^1$

素因数の和:1869

約数の個数: 72

約数和(自身を含む): 351783936

約数和(自身を除く): 223266540

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 127, 147, 196, 254, 294, 381, 508, 588, 762, 889, 1524, 1721, 1778, 2667, 3442, 3556, 5163, 5334, 6223, 6884, 10326, 10668, 12047, 12446, 18669, 20652, 24094, 24892, 36141, 37338, 48188, 72282, 74676, 84329, 144564, 168658, 218567, 252987, 337316, 437134, 505974, 655701, 874268, 1011948, 1311402, 1529969, 2622804, 3059938, 4589907, 6119876, 9179814, 10709783, 18359628, 21419566, 32129349, 42839132, 64258698, 128517396]

約数ペア:

[(1, 128517396), (2, 64258698), (3, 42839132), (4, 32129349), (6, 21419566), (7, 18359628), (12, 10709783), (14, 9179814), (21, 6119876), (28, 4589907), (42, 3059938), (49, 2622804), (84, 1529969), (98, 1311402), (127, 1011948), (147, 874268), (196, 655701), (254, 505974), (294, 437134), (381, 337316), (508, 252987), (588, 218567), (762, 168658), (889, 144564), (1524, 84329), (1721, 74676), (1778, 72282), (2667, 48188), (3442, 37338), (3556, 36141), (5163, 24892), (5334, 24094), (6223, 20652), (6884, 18669), (10326, 12446), (10668, 12047)]