20946420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:246

約数の個数: 144

約数和(自身を含む): 70761600

約数和(自身を除く): 49815180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 71, 90, 99, 110, 132, 142, 149, 165, 180, 198, 213, 220, 284, 298, 330, 355, 396, 426, 447, 495, 596, 639, 660, 710, 745, 781, 852, 894, 990, 1065, 1278, 1341, 1420, 1490, 1562, 1639, 1788, 1980, 2130, 2235, 2343, 2556, 2682, 2980, 3124, 3195, 3278, 3905, 4260, 4470, 4686, 4917, 5364, 6390, 6556, 6705, 7029, 7810, 8195, 8940, 9372, 9834, 10579, 11715, 12780, 13410, 14058, 14751, 15620, 16390, 19668, 21158, 23430, 24585, 26820, 28116, 29502, 31737, 32780, 35145, 42316, 46860, 49170, 52895, 59004, 63474, 70290, 73755, 95211, 98340, 105790, 116369, 126948, 140580, 147510, 158685, 190422, 211580, 232738, 295020, 317370, 349107, 380844, 465476, 476055, 581845, 634740, 698214, 952110, 1047321, 1163690, 1396428, 1745535, 1904220, 2094642, 2327380, 3491070, 4189284, 5236605, 6982140, 10473210, 20946420]

約数ペア:

[(1, 20946420), (2, 10473210), (3, 6982140), (4, 5236605), (5, 4189284), (6, 3491070), (9, 2327380), (10, 2094642), (11, 1904220), (12, 1745535), (15, 1396428), (18, 1163690), (20, 1047321), (22, 952110), (30, 698214), (33, 634740), (36, 581845), (44, 476055), (45, 465476), (55, 380844), (60, 349107), (66, 317370), (71, 295020), (90, 232738), (99, 211580), (110, 190422), (132, 158685), (142, 147510), (149, 140580), (165, 126948), (180, 116369), (198, 105790), (213, 98340), (220, 95211), (284, 73755), (298, 70290), (330, 63474), (355, 59004), (396, 52895), (426, 49170), (447, 46860), (495, 42316), (596, 35145), (639, 32780), (660, 31737), (710, 29502), (745, 28116), (781, 26820), (852, 24585), (894, 23430), (990, 21158), (1065, 19668), (1278, 16390), (1341, 15620), (1420, 14751), (1490, 14058), (1562, 13410), (1639, 12780), (1788, 11715), (1980, 10579), (2130, 9834), (2235, 9372), (2343, 8940), (2556, 8195), (2682, 7810), (2980, 7029), (3124, 6705), (3195, 6556), (3278, 6390), (3905, 5364), (4260, 4917), (4470, 4686)]