168003320

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{443}}^1\times {\mathrm{499}}^1$

素因数の和:972

約数の個数: 64

約数和(自身を含む): 399600000

約数和(自身を除く): 231596680

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 443, 499, 760, 886, 998, 1772, 1996, 2215, 2495, 3544, 3992, 4430, 4990, 8417, 8860, 9481, 9980, 16834, 17720, 18962, 19960, 33668, 37924, 42085, 47405, 67336, 75848, 84170, 94810, 168340, 189620, 221057, 336680, 379240, 442114, 884228, 1105285, 1768456, 2210570, 4200083, 4421140, 8400166, 8842280, 16800332, 21000415, 33600664, 42000830, 84001660, 168003320]

約数ペア:

[(1, 168003320), (2, 84001660), (4, 42000830), (5, 33600664), (8, 21000415), (10, 16800332), (19, 8842280), (20, 8400166), (38, 4421140), (40, 4200083), (76, 2210570), (95, 1768456), (152, 1105285), (190, 884228), (380, 442114), (443, 379240), (499, 336680), (760, 221057), (886, 189620), (998, 168340), (1772, 94810), (1996, 84170), (2215, 75848), (2495, 67336), (3544, 47405), (3992, 42085), (4430, 37924), (4990, 33668), (8417, 19960), (8860, 18962), (9481, 17720), (9980, 16834)]