645144968

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1$

素因数の和:295

約数の個数: 128

約数和(自身を含む): 1451520000

約数和(自身を除く): 806375032

約数列:

[1, 2, 4, 8, 13, 17, 26, 31, 34, 52, 62, 68, 79, 104, 124, 136, 149, 158, 221, 248, 298, 316, 403, 442, 527, 596, 632, 806, 884, 1027, 1054, 1192, 1343, 1612, 1768, 1937, 2054, 2108, 2449, 2533, 2686, 3224, 3874, 4108, 4216, 4619, 4898, 5066, 5372, 6851, 7748, 8216, 9238, 9796, 10132, 10744, 11771, 13702, 15496, 17459, 18476, 19592, 20264, 23542, 27404, 31837, 32929, 34918, 36952, 41633, 47084, 54808, 60047, 63674, 65858, 69836, 78523, 83266, 94168, 120094, 127348, 131716, 139672, 153023, 157046, 166532, 200107, 240188, 254696, 263432, 306046, 314092, 333064, 364901, 400214, 480376, 541229, 612092, 628184, 729802, 800428, 1020799, 1082458, 1224184, 1459604, 1600856, 2041598, 2164916, 2601391, 2919208, 4083196, 4329832, 4743713, 5202782, 6203317, 8166392, 9487426, 10405564, 12406634, 18974852, 20811128, 24813268, 37949704, 49626536, 80643121, 161286242, 322572484, 645144968]

約数ペア:

[(1, 645144968), (2, 322572484), (4, 161286242), (8, 80643121), (13, 49626536), (17, 37949704), (26, 24813268), (31, 20811128), (34, 18974852), (52, 12406634), (62, 10405564), (68, 9487426), (79, 8166392), (104, 6203317), (124, 5202782), (136, 4743713), (149, 4329832), (158, 4083196), (221, 2919208), (248, 2601391), (298, 2164916), (316, 2041598), (403, 1600856), (442, 1459604), (527, 1224184), (596, 1082458), (632, 1020799), (806, 800428), (884, 729802), (1027, 628184), (1054, 612092), (1192, 541229), (1343, 480376), (1612, 400214), (1768, 364901), (1937, 333064), (2054, 314092), (2108, 306046), (2449, 263432), (2533, 254696), (2686, 240188), (3224, 200107), (3874, 166532), (4108, 157046), (4216, 153023), (4619, 139672), (4898, 131716), (5066, 127348), (5372, 120094), (6851, 94168), (7748, 83266), (8216, 78523), (9238, 69836), (9796, 65858), (10132, 63674), (10744, 60047), (11771, 54808), (13702, 47084), (15496, 41633), (17459, 36952), (18476, 34918), (19592, 32929), (20264, 31837), (23542, 27404)]