220313620

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{139439}}^1$

素因数の和:139527

約数の個数: 24

約数和(自身を含む): 468518400

約数和(自身を除く): 248204780

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 139439, 278878, 557756, 697195, 1394390, 2788780, 11015681, 22031362, 44062724, 55078405, 110156810, 220313620]

約数ペア:

[(1, 220313620), (2, 110156810), (4, 55078405), (5, 44062724), (10, 22031362), (20, 11015681), (79, 2788780), (158, 1394390), (316, 697195), (395, 557756), (790, 278878), (1580, 139439)]