168702920

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{197}}^1\times {\mathrm{271}}^1$

素因数の和:558

約数の個数: 64

約数和(自身を含む): 387763200

約数和(自身を除く): 219060280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 197, 271, 316, 394, 395, 542, 632, 788, 790, 985, 1084, 1355, 1576, 1580, 1970, 2168, 2710, 3160, 3940, 5420, 7880, 10840, 15563, 21409, 31126, 42818, 53387, 62252, 77815, 85636, 106774, 107045, 124504, 155630, 171272, 213548, 214090, 266935, 311260, 427096, 428180, 533870, 622520, 856360, 1067740, 2135480, 4217573, 8435146, 16870292, 21087865, 33740584, 42175730, 84351460, 168702920]

約数ペア:

[(1, 168702920), (2, 84351460), (4, 42175730), (5, 33740584), (8, 21087865), (10, 16870292), (20, 8435146), (40, 4217573), (79, 2135480), (158, 1067740), (197, 856360), (271, 622520), (316, 533870), (394, 428180), (395, 427096), (542, 311260), (632, 266935), (788, 214090), (790, 213548), (985, 171272), (1084, 155630), (1355, 124504), (1576, 107045), (1580, 106774), (1970, 85636), (2168, 77815), (2710, 62252), (3160, 53387), (3940, 42818), (5420, 31126), (7880, 21409), (10840, 15563)]