20857575564

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{229}}^1\times {\mathrm{361433}}^1$

素因数の和:361679

約数の個数: 72

約数和(自身を含む): 60518508960

約数和(自身を除く): 39660933396

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 229, 252, 458, 687, 916, 1374, 1603, 2061, 2748, 3206, 4122, 4809, 6412, 8244, 9618, 14427, 19236, 28854, 57708, 361433, 722866, 1084299, 1445732, 2168598, 2530031, 3252897, 4337196, 5060062, 6505794, 7590093, 10120124, 13011588, 15180186, 22770279, 30360372, 45540558, 82768157, 91081116, 165536314, 248304471, 331072628, 496608942, 579377099, 744913413, 993217884, 1158754198, 1489826826, 1738131297, 2317508396, 2979653652, 3476262594, 5214393891, 6952525188, 10428787782, 20857575564]

約数ペア:

[(1, 20857575564), (2, 10428787782), (3, 6952525188), (4, 5214393891), (6, 3476262594), (7, 2979653652), (9, 2317508396), (12, 1738131297), (14, 1489826826), (18, 1158754198), (21, 993217884), (28, 744913413), (36, 579377099), (42, 496608942), (63, 331072628), (84, 248304471), (126, 165536314), (229, 91081116), (252, 82768157), (458, 45540558), (687, 30360372), (916, 22770279), (1374, 15180186), (1603, 13011588), (2061, 10120124), (2748, 7590093), (3206, 6505794), (4122, 5060062), (4809, 4337196), (6412, 3252897), (8244, 2530031), (9618, 2168598), (14427, 1445732), (19236, 1084299), (28854, 722866), (57708, 361433)]