12494780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{251}}^1$

素因数の和:410

約数の個数: 48

約数和(自身を含む): 27941760

約数和(自身を除く): 15446980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 131, 190, 251, 262, 380, 502, 524, 655, 1004, 1255, 1310, 2489, 2510, 2620, 4769, 4978, 5020, 9538, 9956, 12445, 19076, 23845, 24890, 32881, 47690, 49780, 65762, 95380, 131524, 164405, 328810, 624739, 657620, 1249478, 2498956, 3123695, 6247390, 12494780]

約数ペア:

[(1, 12494780), (2, 6247390), (4, 3123695), (5, 2498956), (10, 1249478), (19, 657620), (20, 624739), (38, 328810), (76, 164405), (95, 131524), (131, 95380), (190, 65762), (251, 49780), (262, 47690), (380, 32881), (502, 24890), (524, 23845), (655, 19076), (1004, 12445), (1255, 9956), (1310, 9538), (2489, 5020), (2510, 4978), (2620, 4769)]