28128380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{607}}^1$

素因数の和:954

約数の個数: 48

約数和(自身を含む): 67823616

約数和(自身を除く): 39695236

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 331, 607, 662, 1214, 1324, 1655, 2317, 2428, 3035, 3310, 4249, 4634, 6070, 6620, 8498, 9268, 11585, 12140, 16996, 21245, 23170, 42490, 46340, 84980, 200917, 401834, 803668, 1004585, 1406419, 2009170, 2812838, 4018340, 5625676, 7032095, 14064190, 28128380]

約数ペア:

[(1, 28128380), (2, 14064190), (4, 7032095), (5, 5625676), (7, 4018340), (10, 2812838), (14, 2009170), (20, 1406419), (28, 1004585), (35, 803668), (70, 401834), (140, 200917), (331, 84980), (607, 46340), (662, 42490), (1214, 23170), (1324, 21245), (1655, 16996), (2317, 12140), (2428, 11585), (3035, 9268), (3310, 8498), (4249, 6620), (4634, 6070)]