128720880

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{2591}}^1$

素因数の和:2636

約数の個数: 160

約数和(自身を含む): 462827520

約数和(自身を除く): 334106640

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 27, 30, 36, 40, 45, 46, 48, 54, 60, 69, 72, 80, 90, 92, 108, 115, 120, 135, 138, 144, 180, 184, 207, 216, 230, 240, 270, 276, 345, 360, 368, 414, 432, 460, 540, 552, 621, 690, 720, 828, 920, 1035, 1080, 1104, 1242, 1380, 1656, 1840, 2070, 2160, 2484, 2591, 2760, 3105, 3312, 4140, 4968, 5182, 5520, 6210, 7773, 8280, 9936, 10364, 12420, 12955, 15546, 16560, 20728, 23319, 24840, 25910, 31092, 38865, 41456, 46638, 49680, 51820, 59593, 62184, 69957, 77730, 93276, 103640, 116595, 119186, 124368, 139914, 155460, 178779, 186552, 207280, 233190, 238372, 279828, 297965, 310920, 349785, 357558, 373104, 466380, 476744, 536337, 559656, 595930, 621840, 699570, 715116, 893895, 932760, 953488, 1072674, 1119312, 1191860, 1399140, 1430232, 1609011, 1787790, 1865520, 2145348, 2383720, 2681685, 2798280, 2860464, 3218022, 3575580, 4290696, 4767440, 5363370, 5596560, 6436044, 7151160, 8045055, 8581392, 10726740, 12872088, 14302320, 16090110, 21453480, 25744176, 32180220, 42906960, 64360440, 128720880]

約数ペア:

[(1, 128720880), (2, 64360440), (3, 42906960), (4, 32180220), (5, 25744176), (6, 21453480), (8, 16090110), (9, 14302320), (10, 12872088), (12, 10726740), (15, 8581392), (16, 8045055), (18, 7151160), (20, 6436044), (23, 5596560), (24, 5363370), (27, 4767440), (30, 4290696), (36, 3575580), (40, 3218022), (45, 2860464), (46, 2798280), (48, 2681685), (54, 2383720), (60, 2145348), (69, 1865520), (72, 1787790), (80, 1609011), (90, 1430232), (92, 1399140), (108, 1191860), (115, 1119312), (120, 1072674), (135, 953488), (138, 932760), (144, 893895), (180, 715116), (184, 699570), (207, 621840), (216, 595930), (230, 559656), (240, 536337), (270, 476744), (276, 466380), (345, 373104), (360, 357558), (368, 349785), (414, 310920), (432, 297965), (460, 279828), (540, 238372), (552, 233190), (621, 207280), (690, 186552), (720, 178779), (828, 155460), (920, 139914), (1035, 124368), (1080, 119186), (1104, 116595), (1242, 103640), (1380, 93276), (1656, 77730), (1840, 69957), (2070, 62184), (2160, 59593), (2484, 51820), (2591, 49680), (2760, 46638), (3105, 41456), (3312, 38865), (4140, 31092), (4968, 25910), (5182, 24840), (5520, 23319), (6210, 20728), (7773, 16560), (8280, 15546), (9936, 12955), (10364, 12420)]