208478640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{349}}^1$

素因数の和:515

約数の個数: 160

約数和(自身を含む): 687456000

約数和(自身を除く): 478977360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 131, 152, 190, 228, 240, 262, 285, 304, 349, 380, 393, 456, 524, 570, 655, 698, 760, 786, 912, 1047, 1048, 1140, 1310, 1396, 1520, 1572, 1745, 1965, 2094, 2096, 2280, 2489, 2620, 2792, 3144, 3490, 3930, 4188, 4560, 4978, 5235, 5240, 5584, 6288, 6631, 6980, 7467, 7860, 8376, 9956, 10470, 10480, 12445, 13262, 13960, 14934, 15720, 16752, 19893, 19912, 20940, 24890, 26524, 27920, 29868, 31440, 33155, 37335, 39786, 39824, 41880, 45719, 49780, 53048, 59736, 66310, 74670, 79572, 83760, 91438, 99465, 99560, 106096, 119472, 132620, 137157, 149340, 159144, 182876, 198930, 199120, 228595, 265240, 274314, 298680, 318288, 365752, 397860, 457190, 530480, 548628, 597360, 685785, 731504, 795720, 868661, 914380, 1097256, 1371570, 1591440, 1737322, 1828760, 2194512, 2605983, 2743140, 3474644, 3657520, 4343305, 5211966, 5486280, 6949288, 8686610, 10423932, 10972560, 13029915, 13898576, 17373220, 20847864, 26059830, 34746440, 41695728, 52119660, 69492880, 104239320, 208478640]

約数ペア:

[(1, 208478640), (2, 104239320), (3, 69492880), (4, 52119660), (5, 41695728), (6, 34746440), (8, 26059830), (10, 20847864), (12, 17373220), (15, 13898576), (16, 13029915), (19, 10972560), (20, 10423932), (24, 8686610), (30, 6949288), (38, 5486280), (40, 5211966), (48, 4343305), (57, 3657520), (60, 3474644), (76, 2743140), (80, 2605983), (95, 2194512), (114, 1828760), (120, 1737322), (131, 1591440), (152, 1371570), (190, 1097256), (228, 914380), (240, 868661), (262, 795720), (285, 731504), (304, 685785), (349, 597360), (380, 548628), (393, 530480), (456, 457190), (524, 397860), (570, 365752), (655, 318288), (698, 298680), (760, 274314), (786, 265240), (912, 228595), (1047, 199120), (1048, 198930), (1140, 182876), (1310, 159144), (1396, 149340), (1520, 137157), (1572, 132620), (1745, 119472), (1965, 106096), (2094, 99560), (2096, 99465), (2280, 91438), (2489, 83760), (2620, 79572), (2792, 74670), (3144, 66310), (3490, 59736), (3930, 53048), (4188, 49780), (4560, 45719), (4978, 41880), (5235, 39824), (5240, 39786), (5584, 37335), (6288, 33155), (6631, 31440), (6980, 29868), (7467, 27920), (7860, 26524), (8376, 24890), (9956, 20940), (10470, 19912), (10480, 19893), (12445, 16752), (13262, 15720), (13960, 14934)]