128766560

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1997}}^1$

素因数の和:2056

約数の個数: 96

約数和(自身を含む): 338349312

約数和(自身を除く): 209582752

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 65, 80, 104, 124, 130, 155, 160, 208, 248, 260, 310, 403, 416, 496, 520, 620, 806, 992, 1040, 1240, 1612, 1997, 2015, 2080, 2480, 3224, 3994, 4030, 4960, 6448, 7988, 8060, 9985, 12896, 15976, 16120, 19970, 25961, 31952, 32240, 39940, 51922, 61907, 63904, 64480, 79880, 103844, 123814, 129805, 159760, 207688, 247628, 259610, 309535, 319520, 415376, 495256, 519220, 619070, 804791, 830752, 990512, 1038440, 1238140, 1609582, 1981024, 2076880, 2476280, 3219164, 4023955, 4153760, 4952560, 6438328, 8047910, 9905120, 12876656, 16095820, 25753312, 32191640, 64383280, 128766560]

約数ペア:

[(1, 128766560), (2, 64383280), (4, 32191640), (5, 25753312), (8, 16095820), (10, 12876656), (13, 9905120), (16, 8047910), (20, 6438328), (26, 4952560), (31, 4153760), (32, 4023955), (40, 3219164), (52, 2476280), (62, 2076880), (65, 1981024), (80, 1609582), (104, 1238140), (124, 1038440), (130, 990512), (155, 830752), (160, 804791), (208, 619070), (248, 519220), (260, 495256), (310, 415376), (403, 319520), (416, 309535), (496, 259610), (520, 247628), (620, 207688), (806, 159760), (992, 129805), (1040, 123814), (1240, 103844), (1612, 79880), (1997, 64480), (2015, 63904), (2080, 61907), (2480, 51922), (3224, 39940), (3994, 32240), (4030, 31952), (4960, 25961), (6448, 19970), (7988, 16120), (8060, 15976), (9985, 12896)]