18997920

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{167}}^1$

素因数の和:267

約数の個数: 144

約数和(自身を含む): 66044160

約数和(自身を除く): 47046240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 79, 80, 90, 96, 120, 144, 158, 160, 167, 180, 237, 240, 288, 316, 334, 360, 395, 474, 480, 501, 632, 668, 711, 720, 790, 835, 948, 1002, 1185, 1264, 1336, 1422, 1440, 1503, 1580, 1670, 1896, 2004, 2370, 2505, 2528, 2672, 2844, 3006, 3160, 3340, 3555, 3792, 4008, 4740, 5010, 5344, 5688, 6012, 6320, 6680, 7110, 7515, 7584, 8016, 9480, 10020, 11376, 12024, 12640, 13193, 13360, 14220, 15030, 16032, 18960, 20040, 22752, 24048, 26386, 26720, 28440, 30060, 37920, 39579, 40080, 48096, 52772, 56880, 60120, 65965, 79158, 80160, 105544, 113760, 118737, 120240, 131930, 158316, 197895, 211088, 237474, 240480, 263860, 316632, 395790, 422176, 474948, 527720, 593685, 633264, 791580, 949896, 1055440, 1187370, 1266528, 1583160, 1899792, 2110880, 2374740, 3166320, 3799584, 4749480, 6332640, 9498960, 18997920]

約数ペア:

[(1, 18997920), (2, 9498960), (3, 6332640), (4, 4749480), (5, 3799584), (6, 3166320), (8, 2374740), (9, 2110880), (10, 1899792), (12, 1583160), (15, 1266528), (16, 1187370), (18, 1055440), (20, 949896), (24, 791580), (30, 633264), (32, 593685), (36, 527720), (40, 474948), (45, 422176), (48, 395790), (60, 316632), (72, 263860), (79, 240480), (80, 237474), (90, 211088), (96, 197895), (120, 158316), (144, 131930), (158, 120240), (160, 118737), (167, 113760), (180, 105544), (237, 80160), (240, 79158), (288, 65965), (316, 60120), (334, 56880), (360, 52772), (395, 48096), (474, 40080), (480, 39579), (501, 37920), (632, 30060), (668, 28440), (711, 26720), (720, 26386), (790, 24048), (835, 22752), (948, 20040), (1002, 18960), (1185, 16032), (1264, 15030), (1336, 14220), (1422, 13360), (1440, 13193), (1503, 12640), (1580, 12024), (1670, 11376), (1896, 10020), (2004, 9480), (2370, 8016), (2505, 7584), (2528, 7515), (2672, 7110), (2844, 6680), (3006, 6320), (3160, 6012), (3340, 5688), (3555, 5344), (3792, 5010), (4008, 4740)]