128001976

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{313}}^1$

素因数の和:464

約数の個数: 64

約数和(自身を含む): 265870080

約数和(自身を除く): 137868104

約数列:

[1, 2, 4, 8, 17, 31, 34, 62, 68, 97, 124, 136, 194, 248, 313, 388, 527, 626, 776, 1054, 1252, 1649, 2108, 2504, 3007, 3298, 4216, 5321, 6014, 6596, 9703, 10642, 12028, 13192, 19406, 21284, 24056, 30361, 38812, 42568, 51119, 60722, 77624, 102238, 121444, 164951, 204476, 242888, 329902, 408952, 516137, 659804, 941191, 1032274, 1319608, 1882382, 2064548, 3764764, 4129096, 7529528, 16000247, 32000494, 64000988, 128001976]

約数ペア:

[(1, 128001976), (2, 64000988), (4, 32000494), (8, 16000247), (17, 7529528), (31, 4129096), (34, 3764764), (62, 2064548), (68, 1882382), (97, 1319608), (124, 1032274), (136, 941191), (194, 659804), (248, 516137), (313, 408952), (388, 329902), (527, 242888), (626, 204476), (776, 164951), (1054, 121444), (1252, 102238), (1649, 77624), (2108, 60722), (2504, 51119), (3007, 42568), (3298, 38812), (4216, 30361), (5321, 24056), (6014, 21284), (6596, 19406), (9703, 13192), (10642, 12028)]