123390180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{331}}^1$

素因数の和:474

約数の個数: 144

約数和(自身を含む): 398798400

約数和(自身を除く): 275408220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 109, 114, 171, 180, 190, 218, 228, 285, 327, 331, 342, 380, 436, 545, 570, 654, 662, 684, 855, 981, 993, 1090, 1140, 1308, 1324, 1635, 1655, 1710, 1962, 1986, 2071, 2180, 2979, 3270, 3310, 3420, 3924, 3972, 4142, 4905, 4965, 5958, 6213, 6289, 6540, 6620, 8284, 9810, 9930, 10355, 11916, 12426, 12578, 14895, 18639, 18867, 19620, 19860, 20710, 24852, 25156, 29790, 31065, 31445, 36079, 37278, 37734, 41420, 56601, 59580, 62130, 62890, 72158, 74556, 75468, 93195, 94335, 108237, 113202, 124260, 125780, 144316, 180395, 186390, 188670, 216474, 226404, 283005, 324711, 360790, 372780, 377340, 432948, 541185, 566010, 649422, 685501, 721580, 1082370, 1132020, 1298844, 1371002, 1623555, 2056503, 2164740, 2742004, 3247110, 3427505, 4113006, 6169509, 6494220, 6855010, 8226012, 10282515, 12339018, 13710020, 20565030, 24678036, 30847545, 41130060, 61695090, 123390180]

約数ペア:

[(1, 123390180), (2, 61695090), (3, 41130060), (4, 30847545), (5, 24678036), (6, 20565030), (9, 13710020), (10, 12339018), (12, 10282515), (15, 8226012), (18, 6855010), (19, 6494220), (20, 6169509), (30, 4113006), (36, 3427505), (38, 3247110), (45, 2742004), (57, 2164740), (60, 2056503), (76, 1623555), (90, 1371002), (95, 1298844), (109, 1132020), (114, 1082370), (171, 721580), (180, 685501), (190, 649422), (218, 566010), (228, 541185), (285, 432948), (327, 377340), (331, 372780), (342, 360790), (380, 324711), (436, 283005), (545, 226404), (570, 216474), (654, 188670), (662, 186390), (684, 180395), (855, 144316), (981, 125780), (993, 124260), (1090, 113202), (1140, 108237), (1308, 94335), (1324, 93195), (1635, 75468), (1655, 74556), (1710, 72158), (1962, 62890), (1986, 62130), (2071, 59580), (2180, 56601), (2979, 41420), (3270, 37734), (3310, 37278), (3420, 36079), (3924, 31445), (3972, 31065), (4142, 29790), (4905, 25156), (4965, 24852), (5958, 20710), (6213, 19860), (6289, 19620), (6540, 18867), (6620, 18639), (8284, 14895), (9810, 12578), (9930, 12426), (10355, 11916)]