26689360

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1$

素因数の和:236

約数の個数: 80

約数和(自身を含む): 64995840

約数和(自身を除く): 38306480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 79, 80, 82, 103, 158, 164, 205, 206, 316, 328, 395, 410, 412, 515, 632, 656, 790, 820, 824, 1030, 1264, 1580, 1640, 1648, 2060, 3160, 3239, 3280, 4120, 4223, 6320, 6478, 8137, 8240, 8446, 12956, 16195, 16274, 16892, 21115, 25912, 32390, 32548, 33784, 40685, 42230, 51824, 64780, 65096, 67568, 81370, 84460, 129560, 130192, 162740, 168920, 259120, 325480, 333617, 337840, 650960, 667234, 1334468, 1668085, 2668936, 3336170, 5337872, 6672340, 13344680, 26689360]

約数ペア:

[(1, 26689360), (2, 13344680), (4, 6672340), (5, 5337872), (8, 3336170), (10, 2668936), (16, 1668085), (20, 1334468), (40, 667234), (41, 650960), (79, 337840), (80, 333617), (82, 325480), (103, 259120), (158, 168920), (164, 162740), (205, 130192), (206, 129560), (316, 84460), (328, 81370), (395, 67568), (410, 65096), (412, 64780), (515, 51824), (632, 42230), (656, 40685), (790, 33784), (820, 32548), (824, 32390), (1030, 25912), (1264, 21115), (1580, 16892), (1640, 16274), (1648, 16195), (2060, 12956), (3160, 8446), (3239, 8240), (3280, 8137), (4120, 6478), (4223, 6320)]