81120120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{757}}^1$

素因数の和:837

約数の個数: 128

約数和(自身を含む): 261964800

約数和(自身を除く): 180844680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 47, 57, 60, 76, 94, 95, 114, 120, 141, 152, 188, 190, 228, 235, 282, 285, 376, 380, 456, 470, 564, 570, 705, 757, 760, 893, 940, 1128, 1140, 1410, 1514, 1786, 1880, 2271, 2280, 2679, 2820, 3028, 3572, 3785, 4465, 4542, 5358, 5640, 6056, 7144, 7570, 8930, 9084, 10716, 11355, 13395, 14383, 15140, 17860, 18168, 21432, 22710, 26790, 28766, 30280, 35579, 35720, 43149, 45420, 53580, 57532, 71158, 71915, 86298, 90840, 106737, 107160, 115064, 142316, 143830, 172596, 177895, 213474, 215745, 284632, 287660, 345192, 355790, 426948, 431490, 533685, 575320, 676001, 711580, 853896, 862980, 1067370, 1352002, 1423160, 1725960, 2028003, 2134740, 2704004, 3380005, 4056006, 4269480, 5408008, 6760010, 8112012, 10140015, 13520020, 16224024, 20280030, 27040040, 40560060, 81120120]

約数ペア:

[(1, 81120120), (2, 40560060), (3, 27040040), (4, 20280030), (5, 16224024), (6, 13520020), (8, 10140015), (10, 8112012), (12, 6760010), (15, 5408008), (19, 4269480), (20, 4056006), (24, 3380005), (30, 2704004), (38, 2134740), (40, 2028003), (47, 1725960), (57, 1423160), (60, 1352002), (76, 1067370), (94, 862980), (95, 853896), (114, 711580), (120, 676001), (141, 575320), (152, 533685), (188, 431490), (190, 426948), (228, 355790), (235, 345192), (282, 287660), (285, 284632), (376, 215745), (380, 213474), (456, 177895), (470, 172596), (564, 143830), (570, 142316), (705, 115064), (757, 107160), (760, 106737), (893, 90840), (940, 86298), (1128, 71915), (1140, 71158), (1410, 57532), (1514, 53580), (1786, 45420), (1880, 43149), (2271, 35720), (2280, 35579), (2679, 30280), (2820, 28766), (3028, 26790), (3572, 22710), (3785, 21432), (4465, 18168), (4542, 17860), (5358, 15140), (5640, 14383), (6056, 13395), (7144, 11355), (7570, 10716), (8930, 9084)]