19777680

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2113}}^1$

素因数の和:2145

約数の個数: 120

約数和(自身を含む): 71563128

約数和(自身を除く): 51785448

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 90, 104, 117, 120, 130, 144, 156, 180, 195, 208, 234, 240, 260, 312, 360, 390, 468, 520, 585, 624, 720, 780, 936, 1040, 1170, 1560, 1872, 2113, 2340, 3120, 4226, 4680, 6339, 8452, 9360, 10565, 12678, 16904, 19017, 21130, 25356, 27469, 31695, 33808, 38034, 42260, 50712, 54938, 63390, 76068, 82407, 84520, 95085, 101424, 109876, 126780, 137345, 152136, 164814, 169040, 190170, 219752, 247221, 253560, 274690, 304272, 329628, 380340, 412035, 439504, 494442, 507120, 549380, 659256, 760680, 824070, 988884, 1098760, 1236105, 1318512, 1521360, 1648140, 1977768, 2197520, 2472210, 3296280, 3955536, 4944420, 6592560, 9888840, 19777680]

約数ペア:

[(1, 19777680), (2, 9888840), (3, 6592560), (4, 4944420), (5, 3955536), (6, 3296280), (8, 2472210), (9, 2197520), (10, 1977768), (12, 1648140), (13, 1521360), (15, 1318512), (16, 1236105), (18, 1098760), (20, 988884), (24, 824070), (26, 760680), (30, 659256), (36, 549380), (39, 507120), (40, 494442), (45, 439504), (48, 412035), (52, 380340), (60, 329628), (65, 304272), (72, 274690), (78, 253560), (80, 247221), (90, 219752), (104, 190170), (117, 169040), (120, 164814), (130, 152136), (144, 137345), (156, 126780), (180, 109876), (195, 101424), (208, 95085), (234, 84520), (240, 82407), (260, 76068), (312, 63390), (360, 54938), (390, 50712), (468, 42260), (520, 38034), (585, 33808), (624, 31695), (720, 27469), (780, 25356), (936, 21130), (1040, 19017), (1170, 16904), (1560, 12678), (1872, 10565), (2113, 9360), (2340, 8452), (3120, 6339), (4226, 4680)]