20745508

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1063}}^1$

素因数の和:1132

約数の個数: 48

約数和(自身を含む): 45045504

約数和(自身を除く): 24299996

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 41, 68, 82, 119, 164, 238, 287, 476, 574, 697, 1063, 1148, 1394, 2126, 2788, 4252, 4879, 7441, 9758, 14882, 18071, 19516, 29764, 36142, 43583, 72284, 87166, 126497, 174332, 252994, 305081, 505988, 610162, 740911, 1220324, 1481822, 2963644, 5186377, 10372754, 20745508]

約数ペア:

[(1, 20745508), (2, 10372754), (4, 5186377), (7, 2963644), (14, 1481822), (17, 1220324), (28, 740911), (34, 610162), (41, 505988), (68, 305081), (82, 252994), (119, 174332), (164, 126497), (238, 87166), (287, 72284), (476, 43583), (574, 36142), (697, 29764), (1063, 19516), (1148, 18071), (1394, 14882), (2126, 9758), (2788, 7441), (4252, 4879)]