254710456

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1871}}^1$

素因数の和:1925

約数の個数: 128

約数和(自身を含む): 679311360

約数和(自身を除く): 424600904

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 17, 22, 26, 28, 34, 44, 52, 56, 68, 77, 88, 91, 104, 119, 136, 143, 154, 182, 187, 221, 238, 286, 308, 364, 374, 442, 476, 572, 616, 728, 748, 884, 952, 1001, 1144, 1309, 1496, 1547, 1768, 1871, 2002, 2431, 2618, 3094, 3742, 4004, 4862, 5236, 6188, 7484, 8008, 9724, 10472, 12376, 13097, 14968, 17017, 19448, 20581, 24323, 26194, 31807, 34034, 41162, 48646, 52388, 63614, 68068, 82324, 97292, 104776, 127228, 136136, 144067, 164648, 170261, 194584, 222649, 254456, 267553, 288134, 340522, 349877, 413491, 445298, 535106, 576268, 681044, 699754, 826982, 890596, 1070212, 1152536, 1362088, 1399508, 1653964, 1781192, 1872871, 2140424, 2449139, 2799016, 2894437, 3307928, 3745742, 4548401, 4898278, 5788874, 7491484, 9096802, 9796556, 11577748, 14982968, 18193604, 19593112, 23155496, 31838807, 36387208, 63677614, 127355228, 254710456]

約数ペア:

[(1, 254710456), (2, 127355228), (4, 63677614), (7, 36387208), (8, 31838807), (11, 23155496), (13, 19593112), (14, 18193604), (17, 14982968), (22, 11577748), (26, 9796556), (28, 9096802), (34, 7491484), (44, 5788874), (52, 4898278), (56, 4548401), (68, 3745742), (77, 3307928), (88, 2894437), (91, 2799016), (104, 2449139), (119, 2140424), (136, 1872871), (143, 1781192), (154, 1653964), (182, 1399508), (187, 1362088), (221, 1152536), (238, 1070212), (286, 890596), (308, 826982), (364, 699754), (374, 681044), (442, 576268), (476, 535106), (572, 445298), (616, 413491), (728, 349877), (748, 340522), (884, 288134), (952, 267553), (1001, 254456), (1144, 222649), (1309, 194584), (1496, 170261), (1547, 164648), (1768, 144067), (1871, 136136), (2002, 127228), (2431, 104776), (2618, 97292), (3094, 82324), (3742, 68068), (4004, 63614), (4862, 52388), (5236, 48646), (6188, 41162), (7484, 34034), (8008, 31807), (9724, 26194), (10472, 24323), (12376, 20581), (13097, 19448), (14968, 17017)]