128525495

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:204

約数の個数: 64

約数和(自身を含む): 194641920

約数和(自身を除く): 66116425

約数列:

[1, 5, 7, 23, 35, 43, 47, 79, 115, 161, 215, 235, 301, 329, 395, 553, 805, 989, 1081, 1505, 1645, 1817, 2021, 2765, 3397, 3713, 4945, 5405, 6923, 7567, 9085, 10105, 12719, 14147, 16985, 18565, 23779, 25991, 34615, 37835, 46483, 63595, 70735, 78131, 85399, 118895, 129955, 159659, 232415, 325381, 390655, 426995, 546917, 597793, 798295, 1117613, 1626905, 2734585, 2988965, 3672157, 5588065, 18360785, 25705099, 128525495]

約数ペア:

[(1, 128525495), (5, 25705099), (7, 18360785), (23, 5588065), (35, 3672157), (43, 2988965), (47, 2734585), (79, 1626905), (115, 1117613), (161, 798295), (215, 597793), (235, 546917), (301, 426995), (329, 390655), (395, 325381), (553, 232415), (805, 159659), (989, 129955), (1081, 118895), (1505, 85399), (1645, 78131), (1817, 70735), (2021, 63595), (2765, 46483), (3397, 37835), (3713, 34615), (4945, 25991), (5405, 23779), (6923, 18565), (7567, 16985), (9085, 14147), (10105, 12719)]