1991159520

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{269}}^1\times {\mathrm{2203}}^1$

素因数の和:2497

約数の個数: 192

約数和(自身を含む): 7198087680

約数和(自身を除く): 5206928160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 70, 80, 84, 96, 105, 112, 120, 140, 160, 168, 210, 224, 240, 269, 280, 336, 420, 480, 538, 560, 672, 807, 840, 1076, 1120, 1345, 1614, 1680, 1883, 2152, 2203, 2690, 3228, 3360, 3766, 4035, 4304, 4406, 5380, 5649, 6456, 6609, 7532, 8070, 8608, 8812, 9415, 10760, 11015, 11298, 12912, 13218, 15064, 15421, 16140, 17624, 18830, 21520, 22030, 22596, 25824, 26436, 28245, 30128, 30842, 32280, 33045, 35248, 37660, 43040, 44060, 45192, 46263, 52872, 56490, 60256, 61684, 64560, 66090, 70496, 75320, 77105, 88120, 90384, 92526, 105744, 112980, 123368, 129120, 132180, 150640, 154210, 176240, 180768, 185052, 211488, 225960, 231315, 246736, 264360, 301280, 308420, 352480, 370104, 451920, 462630, 493472, 528720, 592607, 616840, 740208, 903840, 925260, 1057440, 1185214, 1233680, 1480416, 1777821, 1850520, 2370428, 2467360, 2963035, 3555642, 3701040, 4148249, 4740856, 5926070, 7111284, 7402080, 8296498, 8889105, 9481712, 11852140, 12444747, 14222568, 16592996, 17778210, 18963424, 20741245, 23704280, 24889494, 28445136, 33185992, 35556420, 41482490, 47408560, 49778988, 56890272, 62223735, 66371984, 71112840, 82964980, 94817120, 99557976, 124447470, 132743968, 142225680, 165929960, 199115952, 248894940, 284451360, 331859920, 398231904, 497789880, 663719840, 995579760, 1991159520]

約数ペア:

[(1, 1991159520), (2, 995579760), (3, 663719840), (4, 497789880), (5, 398231904), (6, 331859920), (7, 284451360), (8, 248894940), (10, 199115952), (12, 165929960), (14, 142225680), (15, 132743968), (16, 124447470), (20, 99557976), (21, 94817120), (24, 82964980), (28, 71112840), (30, 66371984), (32, 62223735), (35, 56890272), (40, 49778988), (42, 47408560), (48, 41482490), (56, 35556420), (60, 33185992), (70, 28445136), (80, 24889494), (84, 23704280), (96, 20741245), (105, 18963424), (112, 17778210), (120, 16592996), (140, 14222568), (160, 12444747), (168, 11852140), (210, 9481712), (224, 8889105), (240, 8296498), (269, 7402080), (280, 7111284), (336, 5926070), (420, 4740856), (480, 4148249), (538, 3701040), (560, 3555642), (672, 2963035), (807, 2467360), (840, 2370428), (1076, 1850520), (1120, 1777821), (1345, 1480416), (1614, 1233680), (1680, 1185214), (1883, 1057440), (2152, 925260), (2203, 903840), (2690, 740208), (3228, 616840), (3360, 592607), (3766, 528720), (4035, 493472), (4304, 462630), (4406, 451920), (5380, 370104), (5649, 352480), (6456, 308420), (6609, 301280), (7532, 264360), (8070, 246736), (8608, 231315), (8812, 225960), (9415, 211488), (10760, 185052), (11015, 180768), (11298, 176240), (12912, 154210), (13218, 150640), (15064, 132180), (15421, 129120), (16140, 123368), (17624, 112980), (18830, 105744), (21520, 92526), (22030, 90384), (22596, 88120), (25824, 77105), (26436, 75320), (28245, 70496), (30128, 66090), (30842, 64560), (32280, 61684), (33045, 60256), (35248, 56490), (37660, 52872), (43040, 46263), (44060, 45192)]