18827280

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{331}}^1$

素因数の和:429

約数の個数: 120

約数和(自身を含む): 64222080

約数和(自身を除く): 45394800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 79, 80, 90, 120, 144, 158, 180, 237, 240, 316, 331, 360, 395, 474, 632, 662, 711, 720, 790, 948, 993, 1185, 1264, 1324, 1422, 1580, 1655, 1896, 1986, 2370, 2648, 2844, 2979, 3160, 3310, 3555, 3792, 3972, 4740, 4965, 5296, 5688, 5958, 6320, 6620, 7110, 7944, 9480, 9930, 11376, 11916, 13240, 14220, 14895, 15888, 18960, 19860, 23832, 26149, 26480, 28440, 29790, 39720, 47664, 52298, 56880, 59580, 78447, 79440, 104596, 119160, 130745, 156894, 209192, 235341, 238320, 261490, 313788, 392235, 418384, 470682, 522980, 627576, 784470, 941364, 1045960, 1176705, 1255152, 1568940, 1882728, 2091920, 2353410, 3137880, 3765456, 4706820, 6275760, 9413640, 18827280]

約数ペア:

[(1, 18827280), (2, 9413640), (3, 6275760), (4, 4706820), (5, 3765456), (6, 3137880), (8, 2353410), (9, 2091920), (10, 1882728), (12, 1568940), (15, 1255152), (16, 1176705), (18, 1045960), (20, 941364), (24, 784470), (30, 627576), (36, 522980), (40, 470682), (45, 418384), (48, 392235), (60, 313788), (72, 261490), (79, 238320), (80, 235341), (90, 209192), (120, 156894), (144, 130745), (158, 119160), (180, 104596), (237, 79440), (240, 78447), (316, 59580), (331, 56880), (360, 52298), (395, 47664), (474, 39720), (632, 29790), (662, 28440), (711, 26480), (720, 26149), (790, 23832), (948, 19860), (993, 18960), (1185, 15888), (1264, 14895), (1324, 14220), (1422, 13240), (1580, 11916), (1655, 11376), (1896, 9930), (1986, 9480), (2370, 7944), (2648, 7110), (2844, 6620), (2979, 6320), (3160, 5958), (3310, 5688), (3555, 5296), (3792, 4965), (3972, 4740)]