258651978

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1$

素因数の和:216

約数の個数: 128

約数和(自身を含む): 620524800

約数和(自身を除く): 361872822

約数列:

[1, 2, 3, 6, 13, 19, 26, 37, 38, 39, 53, 57, 74, 78, 89, 106, 111, 114, 159, 178, 222, 247, 267, 318, 481, 494, 534, 689, 703, 741, 962, 1007, 1157, 1378, 1406, 1443, 1482, 1691, 1961, 2014, 2067, 2109, 2314, 2886, 3021, 3293, 3382, 3471, 3922, 4134, 4218, 4717, 5073, 5883, 6042, 6586, 6942, 9139, 9434, 9879, 10146, 11766, 13091, 14151, 18278, 19758, 21983, 25493, 26182, 27417, 28302, 37259, 39273, 42809, 43966, 50986, 54834, 61321, 62567, 65949, 74518, 76479, 78546, 85618, 89623, 111777, 122642, 125134, 128427, 131898, 152958, 174529, 179246, 183963, 187701, 223554, 256854, 268869, 349058, 367926, 375402, 484367, 523587, 537738, 813371, 968734, 1047174, 1165099, 1453101, 1626742, 2268877, 2330198, 2440113, 2906202, 3316051, 3495297, 4537754, 4880226, 6632102, 6806631, 6990594, 9948153, 13613262, 19896306, 43108663, 86217326, 129325989, 258651978]

約数ペア:

[(1, 258651978), (2, 129325989), (3, 86217326), (6, 43108663), (13, 19896306), (19, 13613262), (26, 9948153), (37, 6990594), (38, 6806631), (39, 6632102), (53, 4880226), (57, 4537754), (74, 3495297), (78, 3316051), (89, 2906202), (106, 2440113), (111, 2330198), (114, 2268877), (159, 1626742), (178, 1453101), (222, 1165099), (247, 1047174), (267, 968734), (318, 813371), (481, 537738), (494, 523587), (534, 484367), (689, 375402), (703, 367926), (741, 349058), (962, 268869), (1007, 256854), (1157, 223554), (1378, 187701), (1406, 183963), (1443, 179246), (1482, 174529), (1691, 152958), (1961, 131898), (2014, 128427), (2067, 125134), (2109, 122642), (2314, 111777), (2886, 89623), (3021, 85618), (3293, 78546), (3382, 76479), (3471, 74518), (3922, 65949), (4134, 62567), (4218, 61321), (4717, 54834), (5073, 50986), (5883, 43966), (6042, 42809), (6586, 39273), (6942, 37259), (9139, 28302), (9434, 27417), (9879, 26182), (10146, 25493), (11766, 21983), (13091, 19758), (14151, 18278)]