81747568

素因数分解:

$2^4\times 7^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:302

約数の個数: 80

約数和(自身を含む): 187488000

約数和(自身を除く): 105740432

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 59, 89, 112, 118, 139, 178, 236, 278, 356, 413, 472, 556, 623, 712, 826, 944, 973, 1112, 1246, 1424, 1652, 1946, 2224, 2492, 3304, 3892, 4984, 5251, 6608, 7784, 8201, 9968, 10502, 12371, 15568, 16402, 21004, 24742, 32804, 36757, 42008, 49484, 57407, 65608, 73514, 84016, 86597, 98968, 114814, 131216, 147028, 173194, 197936, 229628, 294056, 346388, 459256, 588112, 692776, 729889, 918512, 1385552, 1459778, 2919556, 5109223, 5839112, 10218446, 11678224, 20436892, 40873784, 81747568]

約数ペア:

[(1, 81747568), (2, 40873784), (4, 20436892), (7, 11678224), (8, 10218446), (14, 5839112), (16, 5109223), (28, 2919556), (56, 1459778), (59, 1385552), (89, 918512), (112, 729889), (118, 692776), (139, 588112), (178, 459256), (236, 346388), (278, 294056), (356, 229628), (413, 197936), (472, 173194), (556, 147028), (623, 131216), (712, 114814), (826, 98968), (944, 86597), (973, 84016), (1112, 73514), (1246, 65608), (1424, 57407), (1652, 49484), (1946, 42008), (2224, 36757), (2492, 32804), (3304, 24742), (3892, 21004), (4984, 16402), (5251, 15568), (6608, 12371), (7784, 10502), (8201, 9968)]