123311280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{251}}^1$

素因数の和:379

約数の個数: 160

約数和(自身を含む): 404974080

約数和(自身を除く): 281662800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 40, 46, 48, 60, 69, 80, 89, 92, 115, 120, 138, 178, 184, 230, 240, 251, 267, 276, 345, 356, 368, 445, 460, 502, 534, 552, 690, 712, 753, 890, 920, 1004, 1068, 1104, 1255, 1335, 1380, 1424, 1506, 1780, 1840, 2008, 2047, 2136, 2510, 2670, 2760, 3012, 3560, 3765, 4016, 4094, 4272, 5020, 5340, 5520, 5773, 6024, 6141, 7120, 7530, 8188, 10040, 10235, 10680, 11546, 12048, 12282, 15060, 16376, 17319, 20080, 20470, 21360, 22339, 23092, 24564, 28865, 30120, 30705, 32752, 34638, 40940, 44678, 46184, 49128, 57730, 60240, 61410, 67017, 69276, 81880, 86595, 89356, 92368, 98256, 111695, 115460, 122820, 134034, 138552, 163760, 173190, 178712, 223390, 230920, 245640, 268068, 277104, 335085, 346380, 357424, 446780, 461840, 491280, 513797, 536136, 670170, 692760, 893560, 1027594, 1072272, 1340340, 1385520, 1541391, 1787120, 2055188, 2568985, 2680680, 3082782, 4110376, 5137970, 5361360, 6165564, 7706955, 8220752, 10275940, 12331128, 15413910, 20551880, 24662256, 30827820, 41103760, 61655640, 123311280]

約数ペア:

[(1, 123311280), (2, 61655640), (3, 41103760), (4, 30827820), (5, 24662256), (6, 20551880), (8, 15413910), (10, 12331128), (12, 10275940), (15, 8220752), (16, 7706955), (20, 6165564), (23, 5361360), (24, 5137970), (30, 4110376), (40, 3082782), (46, 2680680), (48, 2568985), (60, 2055188), (69, 1787120), (80, 1541391), (89, 1385520), (92, 1340340), (115, 1072272), (120, 1027594), (138, 893560), (178, 692760), (184, 670170), (230, 536136), (240, 513797), (251, 491280), (267, 461840), (276, 446780), (345, 357424), (356, 346380), (368, 335085), (445, 277104), (460, 268068), (502, 245640), (534, 230920), (552, 223390), (690, 178712), (712, 173190), (753, 163760), (890, 138552), (920, 134034), (1004, 122820), (1068, 115460), (1104, 111695), (1255, 98256), (1335, 92368), (1380, 89356), (1424, 86595), (1506, 81880), (1780, 69276), (1840, 67017), (2008, 61410), (2047, 60240), (2136, 57730), (2510, 49128), (2670, 46184), (2760, 44678), (3012, 40940), (3560, 34638), (3765, 32752), (4016, 30705), (4094, 30120), (4272, 28865), (5020, 24564), (5340, 23092), (5520, 22339), (5773, 21360), (6024, 20470), (6141, 20080), (7120, 17319), (7530, 16376), (8188, 15060), (10040, 12282), (10235, 12048), (10680, 11546)]