787629280

素因数分解:

$2^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{239}}^1\times {\mathrm{479}}^1$

素因数の和:776

約数の個数: 96

約数和(自身を含む): 1916006400

約数和(自身を除く): 1128377120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 80, 86, 160, 172, 215, 239, 344, 430, 478, 479, 688, 860, 956, 958, 1195, 1376, 1720, 1912, 1916, 2390, 2395, 3440, 3824, 3832, 4780, 4790, 6880, 7648, 7664, 9560, 9580, 10277, 15328, 19120, 19160, 20554, 20597, 38240, 38320, 41108, 41194, 51385, 76640, 82216, 82388, 102770, 102985, 114481, 164432, 164776, 205540, 205970, 228962, 328864, 329552, 411080, 411940, 457924, 572405, 659104, 822160, 823880, 915848, 1144810, 1644320, 1647760, 1831696, 2289620, 3295520, 3663392, 4579240, 4922683, 9158480, 9845366, 18316960, 19690732, 24613415, 39381464, 49226830, 78762928, 98453660, 157525856, 196907320, 393814640, 787629280]

約数ペア:

[(1, 787629280), (2, 393814640), (4, 196907320), (5, 157525856), (8, 98453660), (10, 78762928), (16, 49226830), (20, 39381464), (32, 24613415), (40, 19690732), (43, 18316960), (80, 9845366), (86, 9158480), (160, 4922683), (172, 4579240), (215, 3663392), (239, 3295520), (344, 2289620), (430, 1831696), (478, 1647760), (479, 1644320), (688, 1144810), (860, 915848), (956, 823880), (958, 822160), (1195, 659104), (1376, 572405), (1720, 457924), (1912, 411940), (1916, 411080), (2390, 329552), (2395, 328864), (3440, 228962), (3824, 205970), (3832, 205540), (4780, 164776), (4790, 164432), (6880, 114481), (7648, 102985), (7664, 102770), (9560, 82388), (9580, 82216), (10277, 76640), (15328, 51385), (19120, 41194), (19160, 41108), (20554, 38320), (20597, 38240)]