20090917180

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{131}}^1\times {\mathrm{129971}}^1$

素因数の和:130170

約数の個数: 48

約数和(自身を含む): 43233886080

約数和(自身を除く): 23142968900

約数列:

[1, 2, 4, 5, 10, 20, 59, 118, 131, 236, 262, 295, 524, 590, 655, 1180, 1310, 2620, 7729, 15458, 30916, 38645, 77290, 129971, 154580, 259942, 519884, 649855, 1299710, 2599420, 7668289, 15336578, 17026201, 30673156, 34052402, 38341445, 68104804, 76682890, 85131005, 153365780, 170262010, 340524020, 1004545859, 2009091718, 4018183436, 5022729295, 10045458590, 20090917180]

約数ペア:

[(1, 20090917180), (2, 10045458590), (4, 5022729295), (5, 4018183436), (10, 2009091718), (20, 1004545859), (59, 340524020), (118, 170262010), (131, 153365780), (236, 85131005), (262, 76682890), (295, 68104804), (524, 38341445), (590, 34052402), (655, 30673156), (1180, 17026201), (1310, 15336578), (2620, 7668289), (7729, 2599420), (15458, 1299710), (30916, 649855), (38645, 519884), (77290, 259942), (129971, 154580)]