20149423980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{243527}}^1$

素因数の和:243743

約数の個数: 96

約数和(自身を含む): 64805723136

約数和(自身を除く): 44656299156

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 197, 210, 394, 420, 591, 788, 985, 1182, 1379, 1970, 2364, 2758, 2955, 3940, 4137, 5516, 5910, 6895, 8274, 11820, 13790, 16548, 20685, 27580, 41370, 82740, 243527, 487054, 730581, 974108, 1217635, 1461162, 1704689, 2435270, 2922324, 3409378, 3652905, 4870540, 5114067, 6818756, 7305810, 8523445, 10228134, 14611620, 17046890, 20456268, 25570335, 34093780, 47974819, 51140670, 95949638, 102281340, 143924457, 191899276, 239874095, 287848914, 335823733, 479748190, 575697828, 671647466, 719622285, 959496380, 1007471199, 1343294932, 1439244570, 1679118665, 2014942398, 2878489140, 3358237330, 4029884796, 5037355995, 6716474660, 10074711990, 20149423980]

約数ペア:

[(1, 20149423980), (2, 10074711990), (3, 6716474660), (4, 5037355995), (5, 4029884796), (6, 3358237330), (7, 2878489140), (10, 2014942398), (12, 1679118665), (14, 1439244570), (15, 1343294932), (20, 1007471199), (21, 959496380), (28, 719622285), (30, 671647466), (35, 575697828), (42, 479748190), (60, 335823733), (70, 287848914), (84, 239874095), (105, 191899276), (140, 143924457), (197, 102281340), (210, 95949638), (394, 51140670), (420, 47974819), (591, 34093780), (788, 25570335), (985, 20456268), (1182, 17046890), (1379, 14611620), (1970, 10228134), (2364, 8523445), (2758, 7305810), (2955, 6818756), (3940, 5114067), (4137, 4870540), (5516, 3652905), (5910, 3409378), (6895, 2922324), (8274, 2435270), (11820, 1704689), (13790, 1461162), (16548, 1217635), (20685, 974108), (27580, 730581), (41370, 487054), (82740, 243527)]