20874780

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:121

約数の個数: 192

約数和(自身を含む): 70963200

約数和(自身を除く): 50088420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 29, 30, 31, 36, 43, 45, 54, 58, 60, 62, 86, 87, 90, 93, 108, 116, 124, 129, 135, 145, 155, 172, 174, 180, 186, 215, 258, 261, 270, 279, 290, 310, 348, 372, 387, 430, 435, 465, 516, 522, 540, 558, 580, 620, 645, 774, 783, 837, 860, 870, 899, 930, 1044, 1116, 1161, 1247, 1290, 1305, 1333, 1395, 1548, 1566, 1674, 1740, 1798, 1860, 1935, 2322, 2494, 2580, 2610, 2666, 2697, 2790, 3132, 3348, 3596, 3741, 3870, 3915, 3999, 4185, 4495, 4644, 4988, 5220, 5332, 5394, 5580, 5805, 6235, 6665, 7482, 7740, 7830, 7998, 8091, 8370, 8990, 10788, 11223, 11610, 11997, 12470, 13330, 13485, 14964, 15660, 15996, 16182, 16740, 17980, 18705, 19995, 22446, 23220, 23994, 24273, 24940, 26660, 26970, 32364, 33669, 35991, 37410, 38657, 39990, 40455, 44892, 47988, 48546, 53940, 56115, 59985, 67338, 71982, 74820, 77314, 79980, 80910, 97092, 112230, 115971, 119970, 121365, 134676, 143964, 154628, 161820, 168345, 179955, 193285, 224460, 231942, 239940, 242730, 336690, 347913, 359910, 386570, 463884, 485460, 579855, 673380, 695826, 719820, 773140, 1043739, 1159710, 1391652, 1739565, 2087478, 2319420, 3479130, 4174956, 5218695, 6958260, 10437390, 20874780]

約数ペア:

[(1, 20874780), (2, 10437390), (3, 6958260), (4, 5218695), (5, 4174956), (6, 3479130), (9, 2319420), (10, 2087478), (12, 1739565), (15, 1391652), (18, 1159710), (20, 1043739), (27, 773140), (29, 719820), (30, 695826), (31, 673380), (36, 579855), (43, 485460), (45, 463884), (54, 386570), (58, 359910), (60, 347913), (62, 336690), (86, 242730), (87, 239940), (90, 231942), (93, 224460), (108, 193285), (116, 179955), (124, 168345), (129, 161820), (135, 154628), (145, 143964), (155, 134676), (172, 121365), (174, 119970), (180, 115971), (186, 112230), (215, 97092), (258, 80910), (261, 79980), (270, 77314), (279, 74820), (290, 71982), (310, 67338), (348, 59985), (372, 56115), (387, 53940), (430, 48546), (435, 47988), (465, 44892), (516, 40455), (522, 39990), (540, 38657), (558, 37410), (580, 35991), (620, 33669), (645, 32364), (774, 26970), (783, 26660), (837, 24940), (860, 24273), (870, 23994), (899, 23220), (930, 22446), (1044, 19995), (1116, 18705), (1161, 17980), (1247, 16740), (1290, 16182), (1305, 15996), (1333, 15660), (1395, 14964), (1548, 13485), (1566, 13330), (1674, 12470), (1740, 11997), (1798, 11610), (1860, 11223), (1935, 10788), (2322, 8990), (2494, 8370), (2580, 8091), (2610, 7998), (2666, 7830), (2697, 7740), (2790, 7482), (3132, 6665), (3348, 6235), (3596, 5805), (3741, 5580), (3870, 5394), (3915, 5332), (3999, 5220), (4185, 4988), (4495, 4644)]