128630480

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{313}}^1\times {\mathrm{467}}^1$

素因数の和:804

約数の個数: 80

約数和(自身を含む): 327996864

約数和(自身を除く): 199366384

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 313, 440, 467, 626, 880, 934, 1252, 1565, 1868, 2335, 2504, 3130, 3443, 3736, 4670, 5008, 5137, 6260, 6886, 7472, 9340, 10274, 12520, 13772, 17215, 18680, 20548, 25040, 25685, 27544, 34430, 37360, 41096, 51370, 55088, 68860, 82192, 102740, 137720, 146171, 205480, 275440, 292342, 410960, 584684, 730855, 1169368, 1461710, 1607881, 2338736, 2923420, 3215762, 5846840, 6431524, 8039405, 11693680, 12863048, 16078810, 25726096, 32157620, 64315240, 128630480]

約数ペア:

[(1, 128630480), (2, 64315240), (4, 32157620), (5, 25726096), (8, 16078810), (10, 12863048), (11, 11693680), (16, 8039405), (20, 6431524), (22, 5846840), (40, 3215762), (44, 2923420), (55, 2338736), (80, 1607881), (88, 1461710), (110, 1169368), (176, 730855), (220, 584684), (313, 410960), (440, 292342), (467, 275440), (626, 205480), (880, 146171), (934, 137720), (1252, 102740), (1565, 82192), (1868, 68860), (2335, 55088), (2504, 51370), (3130, 41096), (3443, 37360), (3736, 34430), (4670, 27544), (5008, 25685), (5137, 25040), (6260, 20548), (6886, 18680), (7472, 17215), (9340, 13772), (10274, 12520)]