80269980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{191119}}^1$

素因数の和:191138

約数の個数: 48

約数和(自身を含む): 256865280

約数和(自身を除く): 176595300

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, 191119, 382238, 573357, 764476, 955595, 1146714, 1337833, 1911190, 2293428, 2675666, 2866785, 3822380, 4013499, 5351332, 5733570, 6689165, 8026998, 11467140, 13378330, 16053996, 20067495, 26756660, 40134990, 80269980]

約数ペア:

[(1, 80269980), (2, 40134990), (3, 26756660), (4, 20067495), (5, 16053996), (6, 13378330), (7, 11467140), (10, 8026998), (12, 6689165), (14, 5733570), (15, 5351332), (20, 4013499), (21, 3822380), (28, 2866785), (30, 2675666), (35, 2293428), (42, 1911190), (60, 1337833), (70, 1146714), (84, 955595), (105, 764476), (140, 573357), (210, 382238), (420, 191119)]