20190380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{4973}}^1$

素因数の和:5018

約数の個数: 48

約数和(自身を含む): 50137920

約数和(自身を除く): 29947540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 2030, 4060, 4973, 9946, 19892, 24865, 34811, 49730, 69622, 99460, 139244, 144217, 174055, 288434, 348110, 576868, 696220, 721085, 1009519, 1442170, 2019038, 2884340, 4038076, 5047595, 10095190, 20190380]

約数ペア:

[(1, 20190380), (2, 10095190), (4, 5047595), (5, 4038076), (7, 2884340), (10, 2019038), (14, 1442170), (20, 1009519), (28, 721085), (29, 696220), (35, 576868), (58, 348110), (70, 288434), (116, 174055), (140, 144217), (145, 139244), (203, 99460), (290, 69622), (406, 49730), (580, 34811), (812, 24865), (1015, 19892), (2030, 9946), (4060, 4973)]