129305840

素因数分解:

$2^4\times 5^1\times {\mathrm{811}}^1\times {\mathrm{1993}}^1$

素因数の和:2817

約数の個数: 40

約数和(自身を含む): 301157808

約数和(自身を除く): 171851968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 811, 1622, 1993, 3244, 3986, 4055, 6488, 7972, 8110, 9965, 12976, 15944, 16220, 19930, 31888, 32440, 39860, 64880, 79720, 159440, 1616323, 3232646, 6465292, 8081615, 12930584, 16163230, 25861168, 32326460, 64652920, 129305840]

約数ペア:

[(1, 129305840), (2, 64652920), (4, 32326460), (5, 25861168), (8, 16163230), (10, 12930584), (16, 8081615), (20, 6465292), (40, 3232646), (80, 1616323), (811, 159440), (1622, 79720), (1993, 64880), (3244, 39860), (3986, 32440), (4055, 31888), (6488, 19930), (7972, 16220), (8110, 15944), (9965, 12976)]