128455920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{7757}}^1$

素因数の和:7799

約数の個数: 120

約数和(自身を含む): 450212256

約数和(自身を除く): 321756336

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 30, 36, 40, 45, 46, 48, 60, 69, 72, 80, 90, 92, 115, 120, 138, 144, 180, 184, 207, 230, 240, 276, 345, 360, 368, 414, 460, 552, 690, 720, 828, 920, 1035, 1104, 1380, 1656, 1840, 2070, 2760, 3312, 4140, 5520, 7757, 8280, 15514, 16560, 23271, 31028, 38785, 46542, 62056, 69813, 77570, 93084, 116355, 124112, 139626, 155140, 178411, 186168, 232710, 279252, 310280, 349065, 356822, 372336, 465420, 535233, 558504, 620560, 698130, 713644, 892055, 930840, 1070466, 1117008, 1396260, 1427288, 1605699, 1784110, 1861680, 2140932, 2676165, 2792520, 2854576, 3211398, 3568220, 4281864, 5352330, 5585040, 6422796, 7136440, 8028495, 8563728, 10704660, 12845592, 14272880, 16056990, 21409320, 25691184, 32113980, 42818640, 64227960, 128455920]

約数ペア:

[(1, 128455920), (2, 64227960), (3, 42818640), (4, 32113980), (5, 25691184), (6, 21409320), (8, 16056990), (9, 14272880), (10, 12845592), (12, 10704660), (15, 8563728), (16, 8028495), (18, 7136440), (20, 6422796), (23, 5585040), (24, 5352330), (30, 4281864), (36, 3568220), (40, 3211398), (45, 2854576), (46, 2792520), (48, 2676165), (60, 2140932), (69, 1861680), (72, 1784110), (80, 1605699), (90, 1427288), (92, 1396260), (115, 1117008), (120, 1070466), (138, 930840), (144, 892055), (180, 713644), (184, 698130), (207, 620560), (230, 558504), (240, 535233), (276, 465420), (345, 372336), (360, 356822), (368, 349065), (414, 310280), (460, 279252), (552, 232710), (690, 186168), (720, 178411), (828, 155140), (920, 139626), (1035, 124112), (1104, 116355), (1380, 93084), (1656, 77570), (1840, 69813), (2070, 62056), (2760, 46542), (3312, 38785), (4140, 31028), (5520, 23271), (7757, 16560), (8280, 15514)]