127978440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{521}}^1$

素因数の和:647

約数の個数: 128

約数和(自身を含む): 405907200

約数和(自身を除く): 277928760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 89, 92, 115, 120, 138, 178, 184, 230, 267, 276, 345, 356, 445, 460, 521, 534, 552, 690, 712, 890, 920, 1042, 1068, 1335, 1380, 1563, 1780, 2047, 2084, 2136, 2605, 2670, 2760, 3126, 3560, 4094, 4168, 5210, 5340, 6141, 6252, 7815, 8188, 10235, 10420, 10680, 11983, 12282, 12504, 15630, 16376, 20470, 20840, 23966, 24564, 30705, 31260, 35949, 40940, 46369, 47932, 49128, 59915, 61410, 62520, 71898, 81880, 92738, 95864, 119830, 122820, 139107, 143796, 179745, 185476, 231845, 239660, 245640, 278214, 287592, 359490, 370952, 463690, 479320, 556428, 695535, 718980, 927380, 1066487, 1112856, 1391070, 1437960, 1854760, 2132974, 2782140, 3199461, 4265948, 5332435, 5564280, 6398922, 8531896, 10664870, 12797844, 15997305, 21329740, 25595688, 31994610, 42659480, 63989220, 127978440]

約数ペア:

[(1, 127978440), (2, 63989220), (3, 42659480), (4, 31994610), (5, 25595688), (6, 21329740), (8, 15997305), (10, 12797844), (12, 10664870), (15, 8531896), (20, 6398922), (23, 5564280), (24, 5332435), (30, 4265948), (40, 3199461), (46, 2782140), (60, 2132974), (69, 1854760), (89, 1437960), (92, 1391070), (115, 1112856), (120, 1066487), (138, 927380), (178, 718980), (184, 695535), (230, 556428), (267, 479320), (276, 463690), (345, 370952), (356, 359490), (445, 287592), (460, 278214), (521, 245640), (534, 239660), (552, 231845), (690, 185476), (712, 179745), (890, 143796), (920, 139107), (1042, 122820), (1068, 119830), (1335, 95864), (1380, 92738), (1563, 81880), (1780, 71898), (2047, 62520), (2084, 61410), (2136, 59915), (2605, 49128), (2670, 47932), (2760, 46369), (3126, 40940), (3560, 35949), (4094, 31260), (4168, 30705), (5210, 24564), (5340, 23966), (6141, 20840), (6252, 20470), (7815, 16376), (8188, 15630), (10235, 12504), (10420, 12282), (10680, 11983)]