128356620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{305611}}^1$

素因数の和:305630

約数の個数: 48

約数和(自身を含む): 410742528

約数和(自身を除く): 282385908

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, 305611, 611222, 916833, 1222444, 1528055, 1833666, 2139277, 3056110, 3667332, 4278554, 4584165, 6112220, 6417831, 8557108, 9168330, 10696385, 12835662, 18336660, 21392770, 25671324, 32089155, 42785540, 64178310, 128356620]

約数ペア:

[(1, 128356620), (2, 64178310), (3, 42785540), (4, 32089155), (5, 25671324), (6, 21392770), (7, 18336660), (10, 12835662), (12, 10696385), (14, 9168330), (15, 8557108), (20, 6417831), (21, 6112220), (28, 4584165), (30, 4278554), (35, 3667332), (42, 3056110), (60, 2139277), (70, 1833666), (84, 1528055), (105, 1222444), (140, 916833), (210, 611222), (420, 305611)]