19317780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{107}}^1$

素因数の和:198

約数の個数: 144

約数和(自身を含む): 63685440

約数和(自身を除く): 44367660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 59, 60, 68, 85, 90, 102, 107, 118, 153, 170, 177, 180, 204, 214, 236, 255, 295, 306, 321, 340, 354, 428, 510, 531, 535, 590, 612, 642, 708, 765, 885, 963, 1003, 1020, 1062, 1070, 1180, 1284, 1530, 1605, 1770, 1819, 1926, 2006, 2124, 2140, 2655, 3009, 3060, 3210, 3540, 3638, 3852, 4012, 4815, 5015, 5310, 5457, 6018, 6313, 6420, 7276, 9027, 9095, 9630, 10030, 10620, 10914, 12036, 12626, 15045, 16371, 18054, 18190, 18939, 19260, 20060, 21828, 25252, 27285, 30090, 31565, 32742, 36108, 36380, 37878, 45135, 54570, 56817, 60180, 63130, 65484, 75756, 81855, 90270, 94695, 107321, 109140, 113634, 126260, 163710, 180540, 189390, 214642, 227268, 284085, 321963, 327420, 378780, 429284, 536605, 568170, 643926, 965889, 1073210, 1136340, 1287852, 1609815, 1931778, 2146420, 3219630, 3863556, 4829445, 6439260, 9658890, 19317780]

約数ペア:

[(1, 19317780), (2, 9658890), (3, 6439260), (4, 4829445), (5, 3863556), (6, 3219630), (9, 2146420), (10, 1931778), (12, 1609815), (15, 1287852), (17, 1136340), (18, 1073210), (20, 965889), (30, 643926), (34, 568170), (36, 536605), (45, 429284), (51, 378780), (59, 327420), (60, 321963), (68, 284085), (85, 227268), (90, 214642), (102, 189390), (107, 180540), (118, 163710), (153, 126260), (170, 113634), (177, 109140), (180, 107321), (204, 94695), (214, 90270), (236, 81855), (255, 75756), (295, 65484), (306, 63130), (321, 60180), (340, 56817), (354, 54570), (428, 45135), (510, 37878), (531, 36380), (535, 36108), (590, 32742), (612, 31565), (642, 30090), (708, 27285), (765, 25252), (885, 21828), (963, 20060), (1003, 19260), (1020, 18939), (1062, 18190), (1070, 18054), (1180, 16371), (1284, 15045), (1530, 12626), (1605, 12036), (1770, 10914), (1819, 10620), (1926, 10030), (2006, 9630), (2124, 9095), (2140, 9027), (2655, 7276), (3009, 6420), (3060, 6313), (3210, 6018), (3540, 5457), (3638, 5310), (3852, 5015), (4012, 4815)]