20388452

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{283}}^1$

素因数の和:408

約数の個数: 48

約数和(自身を含む): 42749952

約数和(自身を除く): 22361500

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 83, 124, 166, 217, 283, 332, 434, 566, 581, 868, 1132, 1162, 1981, 2324, 2573, 3962, 5146, 7924, 8773, 10292, 17546, 18011, 23489, 35092, 36022, 46978, 61411, 72044, 93956, 122822, 164423, 245644, 328846, 657692, 728159, 1456318, 2912636, 5097113, 10194226, 20388452]

約数ペア:

[(1, 20388452), (2, 10194226), (4, 5097113), (7, 2912636), (14, 1456318), (28, 728159), (31, 657692), (62, 328846), (83, 245644), (124, 164423), (166, 122822), (217, 93956), (283, 72044), (332, 61411), (434, 46978), (566, 36022), (581, 35092), (868, 23489), (1132, 18011), (1162, 17546), (1981, 10292), (2324, 8773), (2573, 7924), (3962, 5146)]