20109810

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1$

素因数の和:208

約数の個数: 128

約数和(自身を含む): 60217344

約数和(自身を除く): 40107534

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 17, 21, 30, 34, 35, 42, 43, 51, 70, 85, 86, 102, 105, 119, 129, 131, 170, 210, 215, 238, 255, 258, 262, 301, 357, 393, 430, 510, 595, 602, 645, 655, 714, 731, 786, 903, 917, 1190, 1290, 1310, 1462, 1505, 1785, 1806, 1834, 1965, 2193, 2227, 2751, 3010, 3570, 3655, 3930, 4386, 4454, 4515, 4585, 5117, 5502, 5633, 6681, 7310, 9030, 9170, 10234, 10965, 11135, 11266, 13362, 13755, 15351, 15589, 16899, 21930, 22270, 25585, 27510, 28165, 30702, 31178, 33405, 33798, 39431, 46767, 51170, 56330, 66810, 76755, 77945, 78862, 84495, 93534, 95761, 118293, 153510, 155890, 168990, 191522, 197155, 233835, 236586, 287283, 394310, 467670, 478805, 574566, 591465, 670327, 957610, 1182930, 1340654, 1436415, 2010981, 2872830, 3351635, 4021962, 6703270, 10054905, 20109810]

約数ペア:

[(1, 20109810), (2, 10054905), (3, 6703270), (5, 4021962), (6, 3351635), (7, 2872830), (10, 2010981), (14, 1436415), (15, 1340654), (17, 1182930), (21, 957610), (30, 670327), (34, 591465), (35, 574566), (42, 478805), (43, 467670), (51, 394310), (70, 287283), (85, 236586), (86, 233835), (102, 197155), (105, 191522), (119, 168990), (129, 155890), (131, 153510), (170, 118293), (210, 95761), (215, 93534), (238, 84495), (255, 78862), (258, 77945), (262, 76755), (301, 66810), (357, 56330), (393, 51170), (430, 46767), (510, 39431), (595, 33798), (602, 33405), (645, 31178), (655, 30702), (714, 28165), (731, 27510), (786, 25585), (903, 22270), (917, 21930), (1190, 16899), (1290, 15589), (1310, 15351), (1462, 13755), (1505, 13362), (1785, 11266), (1806, 11135), (1834, 10965), (1965, 10234), (2193, 9170), (2227, 9030), (2751, 7310), (3010, 6681), (3570, 5633), (3655, 5502), (3930, 5117), (4386, 4585), (4454, 4515)]