217531664

素因数分解:

$2^4\times 7^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1\times {\mathrm{157}}^1$

素因数の和:400

約数の個数: 80

約数和(自身を含む): 493718400

約数和(自身を除く): 276186736

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 89, 112, 139, 157, 178, 278, 314, 356, 556, 623, 628, 712, 973, 1099, 1112, 1246, 1256, 1424, 1946, 2198, 2224, 2492, 2512, 3892, 4396, 4984, 7784, 8792, 9968, 12371, 13973, 15568, 17584, 21823, 24742, 27946, 43646, 49484, 55892, 86597, 87292, 97811, 98968, 111784, 152761, 173194, 174584, 195622, 197936, 223568, 305522, 346388, 349168, 391244, 611044, 692776, 782488, 1222088, 1385552, 1564976, 1942247, 2444176, 3884494, 7768988, 13595729, 15537976, 27191458, 31075952, 54382916, 108765832, 217531664]

約数ペア:

[(1, 217531664), (2, 108765832), (4, 54382916), (7, 31075952), (8, 27191458), (14, 15537976), (16, 13595729), (28, 7768988), (56, 3884494), (89, 2444176), (112, 1942247), (139, 1564976), (157, 1385552), (178, 1222088), (278, 782488), (314, 692776), (356, 611044), (556, 391244), (623, 349168), (628, 346388), (712, 305522), (973, 223568), (1099, 197936), (1112, 195622), (1246, 174584), (1256, 173194), (1424, 152761), (1946, 111784), (2198, 98968), (2224, 97811), (2492, 87292), (2512, 86597), (3892, 55892), (4396, 49484), (4984, 43646), (7784, 27946), (8792, 24742), (9968, 21823), (12371, 17584), (13973, 15568)]