19707120

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{271}}^1$

素因数の和:391

約数の個数: 120

約数和(自身を含む): 67084992

約数和(自身を除く): 47377872

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, 80, 90, 101, 120, 144, 180, 202, 240, 271, 303, 360, 404, 505, 542, 606, 720, 808, 813, 909, 1010, 1084, 1212, 1355, 1515, 1616, 1626, 1818, 2020, 2168, 2424, 2439, 2710, 3030, 3252, 3636, 4040, 4065, 4336, 4545, 4848, 4878, 5420, 6060, 6504, 7272, 8080, 8130, 9090, 9756, 10840, 12120, 12195, 13008, 14544, 16260, 18180, 19512, 21680, 24240, 24390, 27371, 32520, 36360, 39024, 48780, 54742, 65040, 72720, 82113, 97560, 109484, 136855, 164226, 195120, 218968, 246339, 273710, 328452, 410565, 437936, 492678, 547420, 656904, 821130, 985356, 1094840, 1231695, 1313808, 1642260, 1970712, 2189680, 2463390, 3284520, 3941424, 4926780, 6569040, 9853560, 19707120]

約数ペア:

[(1, 19707120), (2, 9853560), (3, 6569040), (4, 4926780), (5, 3941424), (6, 3284520), (8, 2463390), (9, 2189680), (10, 1970712), (12, 1642260), (15, 1313808), (16, 1231695), (18, 1094840), (20, 985356), (24, 821130), (30, 656904), (36, 547420), (40, 492678), (45, 437936), (48, 410565), (60, 328452), (72, 273710), (80, 246339), (90, 218968), (101, 195120), (120, 164226), (144, 136855), (180, 109484), (202, 97560), (240, 82113), (271, 72720), (303, 65040), (360, 54742), (404, 48780), (505, 39024), (542, 36360), (606, 32520), (720, 27371), (808, 24390), (813, 24240), (909, 21680), (1010, 19512), (1084, 18180), (1212, 16260), (1355, 14544), (1515, 13008), (1616, 12195), (1626, 12120), (1818, 10840), (2020, 9756), (2168, 9090), (2424, 8130), (2439, 8080), (2710, 7272), (3030, 6504), (3252, 6060), (3636, 5420), (4040, 4878), (4065, 4848), (4336, 4545)]