2011321280

素因数分解:

$2^6\times 5^1\times {\mathrm{61}}^1\times {\mathrm{167}}^1\times {\mathrm{617}}^1$

素因数の和:862

約数の個数: 112

約数和(自身を含む): 4905061056

約数和(自身を除く): 2893739776

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 160, 167, 244, 305, 320, 334, 488, 610, 617, 668, 835, 976, 1220, 1234, 1336, 1670, 1952, 2440, 2468, 2672, 3085, 3340, 3904, 4880, 4936, 5344, 6170, 6680, 9760, 9872, 10187, 10688, 12340, 13360, 19520, 19744, 20374, 24680, 26720, 37637, 39488, 40748, 49360, 50935, 53440, 75274, 81496, 98720, 101870, 103039, 150548, 162992, 188185, 197440, 203740, 206078, 301096, 325984, 376370, 407480, 412156, 515195, 602192, 651968, 752740, 814960, 824312, 1030390, 1204384, 1505480, 1629920, 1648624, 2060780, 2408768, 3010960, 3259840, 3297248, 4121560, 6021920, 6285379, 6594496, 8243120, 12043840, 12570758, 16486240, 25141516, 31426895, 32972480, 50283032, 62853790, 100566064, 125707580, 201132128, 251415160, 402264256, 502830320, 1005660640, 2011321280]

約数ペア:

[(1, 2011321280), (2, 1005660640), (4, 502830320), (5, 402264256), (8, 251415160), (10, 201132128), (16, 125707580), (20, 100566064), (32, 62853790), (40, 50283032), (61, 32972480), (64, 31426895), (80, 25141516), (122, 16486240), (160, 12570758), (167, 12043840), (244, 8243120), (305, 6594496), (320, 6285379), (334, 6021920), (488, 4121560), (610, 3297248), (617, 3259840), (668, 3010960), (835, 2408768), (976, 2060780), (1220, 1648624), (1234, 1629920), (1336, 1505480), (1670, 1204384), (1952, 1030390), (2440, 824312), (2468, 814960), (2672, 752740), (3085, 651968), (3340, 602192), (3904, 515195), (4880, 412156), (4936, 407480), (5344, 376370), (6170, 325984), (6680, 301096), (9760, 206078), (9872, 203740), (10187, 197440), (10688, 188185), (12340, 162992), (13360, 150548), (19520, 103039), (19744, 101870), (20374, 98720), (24680, 81496), (26720, 75274), (37637, 53440), (39488, 50935), (40748, 49360)]