20106660

素因数分解:

$2^2\times 3^1\times 5^1\times 7^3\times {\mathrm{977}}^1$

素因数の和:1010

約数の個数: 96

約数和(自身を含む): 65721600

約数和(自身を除く): 45614940

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 343, 420, 490, 588, 686, 735, 977, 980, 1029, 1372, 1470, 1715, 1954, 2058, 2931, 2940, 3430, 3908, 4116, 4885, 5145, 5862, 6839, 6860, 9770, 10290, 11724, 13678, 14655, 19540, 20517, 20580, 27356, 29310, 34195, 41034, 47873, 58620, 68390, 82068, 95746, 102585, 136780, 143619, 191492, 205170, 239365, 287238, 335111, 410340, 478730, 574476, 670222, 718095, 957460, 1005333, 1340444, 1436190, 1675555, 2010666, 2872380, 3351110, 4021332, 5026665, 6702220, 10053330, 20106660]

約数ペア:

[(1, 20106660), (2, 10053330), (3, 6702220), (4, 5026665), (5, 4021332), (6, 3351110), (7, 2872380), (10, 2010666), (12, 1675555), (14, 1436190), (15, 1340444), (20, 1005333), (21, 957460), (28, 718095), (30, 670222), (35, 574476), (42, 478730), (49, 410340), (60, 335111), (70, 287238), (84, 239365), (98, 205170), (105, 191492), (140, 143619), (147, 136780), (196, 102585), (210, 95746), (245, 82068), (294, 68390), (343, 58620), (420, 47873), (490, 41034), (588, 34195), (686, 29310), (735, 27356), (977, 20580), (980, 20517), (1029, 19540), (1372, 14655), (1470, 13678), (1715, 11724), (1954, 10290), (2058, 9770), (2931, 6860), (2940, 6839), (3430, 5862), (3908, 5145), (4116, 4885)]