20209980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{48119}}^1$

素因数の和:48138

約数の個数: 48

約数和(自身を含む): 64673280

約数和(自身を除く): 44463300

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 48119, 96238, 144357, 192476, 240595, 288714, 336833, 481190, 577428, 673666, 721785, 962380, 1010499, 1347332, 1443570, 1684165, 2020998, 2887140, 3368330, 4041996, 5052495, 6736660, 10104990, 20209980]

約数ペア:

[(1, 20209980), (2, 10104990), (3, 6736660), (4, 5052495), (5, 4041996), (6, 3368330), (7, 2887140), (10, 2020998), (12, 1684165), (14, 1443570), (15, 1347332), (20, 1010499), (21, 962380), (28, 721785), (30, 673666), (35, 577428), (42, 481190), (60, 336833), (70, 288714), (84, 240595), (105, 192476), (140, 144357), (210, 96238), (420, 48119)]