20275360

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{421}}^1$

素因数の和:486

約数の個数: 96

約数和(自身を含む): 56149632

約数和(自身を除く): 35874272

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 43, 56, 70, 80, 86, 112, 140, 160, 172, 215, 224, 280, 301, 344, 421, 430, 560, 602, 688, 842, 860, 1120, 1204, 1376, 1505, 1684, 1720, 2105, 2408, 2947, 3010, 3368, 3440, 4210, 4816, 5894, 6020, 6736, 6880, 8420, 9632, 11788, 12040, 13472, 14735, 16840, 18103, 23576, 24080, 29470, 33680, 36206, 47152, 48160, 58940, 67360, 72412, 90515, 94304, 117880, 126721, 144824, 181030, 235760, 253442, 289648, 362060, 471520, 506884, 579296, 633605, 724120, 1013768, 1267210, 1448240, 2027536, 2534420, 2896480, 4055072, 5068840, 10137680, 20275360]

約数ペア:

[(1, 20275360), (2, 10137680), (4, 5068840), (5, 4055072), (7, 2896480), (8, 2534420), (10, 2027536), (14, 1448240), (16, 1267210), (20, 1013768), (28, 724120), (32, 633605), (35, 579296), (40, 506884), (43, 471520), (56, 362060), (70, 289648), (80, 253442), (86, 235760), (112, 181030), (140, 144824), (160, 126721), (172, 117880), (215, 94304), (224, 90515), (280, 72412), (301, 67360), (344, 58940), (421, 48160), (430, 47152), (560, 36206), (602, 33680), (688, 29470), (842, 24080), (860, 23576), (1120, 18103), (1204, 16840), (1376, 14735), (1505, 13472), (1684, 12040), (1720, 11788), (2105, 9632), (2408, 8420), (2947, 6880), (3010, 6736), (3368, 6020), (3440, 5894), (4210, 4816)]