81179880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{439}}^1$

素因数の和:543

約数の個数: 128

約数和(自身を含む): 258508800

約数和(自身を除く): 177328920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 67, 69, 92, 115, 120, 134, 138, 184, 201, 230, 268, 276, 335, 345, 402, 439, 460, 536, 552, 670, 690, 804, 878, 920, 1005, 1317, 1340, 1380, 1541, 1608, 1756, 2010, 2195, 2634, 2680, 2760, 3082, 3512, 4020, 4390, 4623, 5268, 6164, 6585, 7705, 8040, 8780, 9246, 10097, 10536, 12328, 13170, 15410, 17560, 18492, 20194, 23115, 26340, 29413, 30291, 30820, 36984, 40388, 46230, 50485, 52680, 58826, 60582, 61640, 80776, 88239, 92460, 100970, 117652, 121164, 147065, 151455, 176478, 184920, 201940, 235304, 242328, 294130, 302910, 352956, 403880, 441195, 588260, 605820, 676499, 705912, 882390, 1176520, 1211640, 1352998, 1764780, 2029497, 2705996, 3382495, 3529560, 4058994, 5411992, 6764990, 8117988, 10147485, 13529980, 16235976, 20294970, 27059960, 40589940, 81179880]

約数ペア:

[(1, 81179880), (2, 40589940), (3, 27059960), (4, 20294970), (5, 16235976), (6, 13529980), (8, 10147485), (10, 8117988), (12, 6764990), (15, 5411992), (20, 4058994), (23, 3529560), (24, 3382495), (30, 2705996), (40, 2029497), (46, 1764780), (60, 1352998), (67, 1211640), (69, 1176520), (92, 882390), (115, 705912), (120, 676499), (134, 605820), (138, 588260), (184, 441195), (201, 403880), (230, 352956), (268, 302910), (276, 294130), (335, 242328), (345, 235304), (402, 201940), (439, 184920), (460, 176478), (536, 151455), (552, 147065), (670, 121164), (690, 117652), (804, 100970), (878, 92460), (920, 88239), (1005, 80776), (1317, 61640), (1340, 60582), (1380, 58826), (1541, 52680), (1608, 50485), (1756, 46230), (2010, 40388), (2195, 36984), (2634, 30820), (2680, 30291), (2760, 29413), (3082, 26340), (3512, 23115), (4020, 20194), (4390, 18492), (4623, 17560), (5268, 15410), (6164, 13170), (6585, 12328), (7705, 10536), (8040, 10097), (8780, 9246)]