20979389760

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{3121933}}^1$

素因数の和:3121960

約数の個数: 112

約数和(自身を含む): 76125238656

約数和(自身を除く): 55145848896

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 140, 160, 168, 192, 210, 224, 240, 280, 320, 336, 420, 448, 480, 560, 672, 840, 960, 1120, 1344, 1680, 2240, 3360, 6720, 3121933, 6243866, 9365799, 12487732, 15609665, 18731598, 21853531, 24975464, 31219330, 37463196, 43707062, 46828995, 49950928, 62438660, 65560593, 74926392, 87414124, 93657990, 99901856, 109267655, 124877320, 131121186, 149852784, 174828248, 187315980, 199803712, 218535310, 249754640, 262242372, 299705568, 327802965, 349656496, 374631960, 437070620, 499509280, 524484744, 599411136, 655605930, 699312992, 749263920, 874141240, 999018560, 1048969488, 1311211860, 1398625984, 1498527840, 1748282480, 2097938976, 2622423720, 2997055680, 3496564960, 4195877952, 5244847440, 6993129920, 10489694880, 20979389760]

約数ペア:

[(1, 20979389760), (2, 10489694880), (3, 6993129920), (4, 5244847440), (5, 4195877952), (6, 3496564960), (7, 2997055680), (8, 2622423720), (10, 2097938976), (12, 1748282480), (14, 1498527840), (15, 1398625984), (16, 1311211860), (20, 1048969488), (21, 999018560), (24, 874141240), (28, 749263920), (30, 699312992), (32, 655605930), (35, 599411136), (40, 524484744), (42, 499509280), (48, 437070620), (56, 374631960), (60, 349656496), (64, 327802965), (70, 299705568), (80, 262242372), (84, 249754640), (96, 218535310), (105, 199803712), (112, 187315980), (120, 174828248), (140, 149852784), (160, 131121186), (168, 124877320), (192, 109267655), (210, 99901856), (224, 93657990), (240, 87414124), (280, 74926392), (320, 65560593), (336, 62438660), (420, 49950928), (448, 46828995), (480, 43707062), (560, 37463196), (672, 31219330), (840, 24975464), (960, 21853531), (1120, 18731598), (1344, 15609665), (1680, 12487732), (2240, 9365799), (3360, 6243866), (6720, 3121933)]