251761680

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{661}}^1$

素因数の和:726

約数の個数: 180

約数和(自身を含む): 885195948

約数和(自身を除く): 633434268

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, 529, 552, 661, 690, 720, 828, 920, 1035, 1058, 1104, 1322, 1380, 1587, 1656, 1840, 1983, 2070, 2116, 2644, 2645, 2760, 3174, 3305, 3312, 3966, 4140, 4232, 4761, 5288, 5290, 5520, 5949, 6348, 6610, 7932, 7935, 8280, 8464, 9522, 9915, 10576, 10580, 11898, 12696, 13220, 15203, 15864, 15870, 16560, 19044, 19830, 21160, 23796, 23805, 25392, 26440, 29745, 30406, 31728, 31740, 38088, 39660, 42320, 45609, 47592, 47610, 52880, 59490, 60812, 63480, 76015, 76176, 79320, 91218, 95184, 95220, 118980, 121624, 126960, 136827, 152030, 158640, 182436, 190440, 228045, 237960, 243248, 273654, 304060, 349669, 364872, 380880, 456090, 475920, 547308, 608120, 684135, 699338, 729744, 912180, 1049007, 1094616, 1216240, 1368270, 1398676, 1748345, 1824360, 2098014, 2189232, 2736540, 2797352, 3147021, 3496690, 3648720, 4196028, 5245035, 5473080, 5594704, 6294042, 6993380, 8392056, 10490070, 10946160, 12588084, 13986760, 15735105, 16784112, 20980140, 25176168, 27973520, 31470210, 41960280, 50352336, 62940420, 83920560, 125880840, 251761680]

約数ペア:

[(1, 251761680), (2, 125880840), (3, 83920560), (4, 62940420), (5, 50352336), (6, 41960280), (8, 31470210), (9, 27973520), (10, 25176168), (12, 20980140), (15, 16784112), (16, 15735105), (18, 13986760), (20, 12588084), (23, 10946160), (24, 10490070), (30, 8392056), (36, 6993380), (40, 6294042), (45, 5594704), (46, 5473080), (48, 5245035), (60, 4196028), (69, 3648720), (72, 3496690), (80, 3147021), (90, 2797352), (92, 2736540), (115, 2189232), (120, 2098014), (138, 1824360), (144, 1748345), (180, 1398676), (184, 1368270), (207, 1216240), (230, 1094616), (240, 1049007), (276, 912180), (345, 729744), (360, 699338), (368, 684135), (414, 608120), (460, 547308), (529, 475920), (552, 456090), (661, 380880), (690, 364872), (720, 349669), (828, 304060), (920, 273654), (1035, 243248), (1058, 237960), (1104, 228045), (1322, 190440), (1380, 182436), (1587, 158640), (1656, 152030), (1840, 136827), (1983, 126960), (2070, 121624), (2116, 118980), (2644, 95220), (2645, 95184), (2760, 91218), (3174, 79320), (3305, 76176), (3312, 76015), (3966, 63480), (4140, 60812), (4232, 59490), (4761, 52880), (5288, 47610), (5290, 47592), (5520, 45609), (5949, 42320), (6348, 39660), (6610, 38088), (7932, 31740), (7935, 31728), (8280, 30406), (8464, 29745), (9522, 26440), (9915, 25392), (10576, 23805), (10580, 23796), (11898, 21160), (12696, 19830), (13220, 19044), (15203, 16560), (15864, 15870)]