640796688

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{635711}}^1$

素因数の和:635732

約数の個数: 60

約数和(自身を含む): 2049535488

約数和(自身を除く): 1408738800

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 48, 56, 63, 72, 84, 112, 126, 144, 168, 252, 336, 504, 1008, 635711, 1271422, 1907133, 2542844, 3814266, 4449977, 5085688, 5721399, 7628532, 8899954, 10171376, 11442798, 13349931, 15257064, 17799908, 22885596, 26699862, 30514128, 35599816, 40049793, 45771192, 53399724, 71199632, 80099586, 91542384, 106799448, 160199172, 213598896, 320398344, 640796688]

約数ペア:

[(1, 640796688), (2, 320398344), (3, 213598896), (4, 160199172), (6, 106799448), (7, 91542384), (8, 80099586), (9, 71199632), (12, 53399724), (14, 45771192), (16, 40049793), (18, 35599816), (21, 30514128), (24, 26699862), (28, 22885596), (36, 17799908), (42, 15257064), (48, 13349931), (56, 11442798), (63, 10171376), (72, 8899954), (84, 7628532), (112, 5721399), (126, 5085688), (144, 4449977), (168, 3814266), (252, 2542844), (336, 1907133), (504, 1271422), (1008, 635711)]