81174380

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{11833}}^1$

素因数の和:11863

約数の個数: 48

約数和(自身を含む): 198811200

約数和(自身を除く): 117636820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3430, 6860, 11833, 23666, 47332, 59165, 82831, 118330, 165662, 236660, 331324, 414155, 579817, 828310, 1159634, 1656620, 2319268, 2899085, 4058719, 5798170, 8117438, 11596340, 16234876, 20293595, 40587190, 81174380]

約数ペア:

[(1, 81174380), (2, 40587190), (4, 20293595), (5, 16234876), (7, 11596340), (10, 8117438), (14, 5798170), (20, 4058719), (28, 2899085), (35, 2319268), (49, 1656620), (70, 1159634), (98, 828310), (140, 579817), (196, 414155), (245, 331324), (343, 236660), (490, 165662), (686, 118330), (980, 82831), (1372, 59165), (1715, 47332), (3430, 23666), (6860, 11833)]