20153249890

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{7417}}^1$

素因数の和:7627

約数の個数: 64

約数和(自身を含む): 38070362880

約数和(自身を除く): 17917112990

約数列:

[1, 2, 5, 10, 43, 71, 86, 89, 142, 178, 215, 355, 430, 445, 710, 890, 3053, 3827, 6106, 6319, 7417, 7654, 12638, 14834, 15265, 19135, 30530, 31595, 37085, 38270, 63190, 74170, 271717, 318931, 526607, 543434, 637862, 660113, 1053214, 1320226, 1358585, 1594655, 2633035, 2717170, 3189310, 3300565, 5266070, 6601130, 22644101, 28384859, 45288202, 46868023, 56769718, 93736046, 113220505, 141924295, 226441010, 234340115, 283848590, 468680230, 2015324989, 4030649978, 10076624945, 20153249890]

約数ペア:

[(1, 20153249890), (2, 10076624945), (5, 4030649978), (10, 2015324989), (43, 468680230), (71, 283848590), (86, 234340115), (89, 226441010), (142, 141924295), (178, 113220505), (215, 93736046), (355, 56769718), (430, 46868023), (445, 45288202), (710, 28384859), (890, 22644101), (3053, 6601130), (3827, 5266070), (6106, 3300565), (6319, 3189310), (7417, 2717170), (7654, 2633035), (12638, 1594655), (14834, 1358585), (15265, 1320226), (19135, 1053214), (30530, 660113), (31595, 637862), (37085, 543434), (38270, 526607), (63190, 318931), (74170, 271717)]