188600020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{223}}^1\times {\mathrm{863}}^1$

素因数の和:1109

約数の個数: 72

約数和(自身を含む): 463325184

約数和(自身を除く): 274725164

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 223, 245, 446, 490, 863, 892, 980, 1115, 1561, 1726, 2230, 3122, 3452, 4315, 4460, 6041, 6244, 7805, 8630, 10927, 12082, 15610, 17260, 21854, 24164, 30205, 31220, 42287, 43708, 54635, 60410, 84574, 109270, 120820, 169148, 192449, 211435, 218540, 384898, 422870, 769796, 845740, 962245, 1347143, 1924490, 2694286, 3848980, 5388572, 6735715, 9430001, 13471430, 18860002, 26942860, 37720004, 47150005, 94300010, 188600020]

約数ペア:

[(1, 188600020), (2, 94300010), (4, 47150005), (5, 37720004), (7, 26942860), (10, 18860002), (14, 13471430), (20, 9430001), (28, 6735715), (35, 5388572), (49, 3848980), (70, 2694286), (98, 1924490), (140, 1347143), (196, 962245), (223, 845740), (245, 769796), (446, 422870), (490, 384898), (863, 218540), (892, 211435), (980, 192449), (1115, 169148), (1561, 120820), (1726, 109270), (2230, 84574), (3122, 60410), (3452, 54635), (4315, 43708), (4460, 42287), (6041, 31220), (6244, 30205), (7805, 24164), (8630, 21854), (10927, 17260), (12082, 15610)]