20772130

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1$

素因数の和:211

約数の個数: 64

約数和(自身を含む): 42768000

約数和(自身を除く): 21995870

約数列:

[1, 2, 5, 10, 17, 19, 34, 38, 59, 85, 95, 109, 118, 170, 190, 218, 295, 323, 545, 590, 646, 1003, 1090, 1121, 1615, 1853, 2006, 2071, 2242, 3230, 3706, 4142, 5015, 5605, 6431, 9265, 10030, 10355, 11210, 12862, 18530, 19057, 20710, 32155, 35207, 38114, 64310, 70414, 95285, 109327, 122189, 176035, 190570, 218654, 244378, 352070, 546635, 610945, 1093270, 1221890, 2077213, 4154426, 10386065, 20772130]

約数ペア:

[(1, 20772130), (2, 10386065), (5, 4154426), (10, 2077213), (17, 1221890), (19, 1093270), (34, 610945), (38, 546635), (59, 352070), (85, 244378), (95, 218654), (109, 190570), (118, 176035), (170, 122189), (190, 109327), (218, 95285), (295, 70414), (323, 64310), (545, 38114), (590, 35207), (646, 32155), (1003, 20710), (1090, 19057), (1121, 18530), (1615, 12862), (1853, 11210), (2006, 10355), (2071, 10030), (2242, 9265), (3230, 6431), (3706, 5605), (4142, 5015)]