168860020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{229}}^2$

素因数の和:497

約数の個数: 72

約数和(自身を含む): 424738944

約数和(自身を除く): 255878924

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 229, 230, 322, 458, 460, 644, 805, 916, 1145, 1603, 1610, 2290, 3206, 3220, 4580, 5267, 6412, 8015, 10534, 16030, 21068, 26335, 32060, 36869, 52441, 52670, 73738, 104882, 105340, 147476, 184345, 209764, 262205, 367087, 368690, 524410, 734174, 737380, 1048820, 1206143, 1468348, 1835435, 2412286, 3670870, 4824572, 6030715, 7341740, 8443001, 12061430, 16886002, 24122860, 33772004, 42215005, 84430010, 168860020]

約数ペア:

[(1, 168860020), (2, 84430010), (4, 42215005), (5, 33772004), (7, 24122860), (10, 16886002), (14, 12061430), (20, 8443001), (23, 7341740), (28, 6030715), (35, 4824572), (46, 3670870), (70, 2412286), (92, 1835435), (115, 1468348), (140, 1206143), (161, 1048820), (229, 737380), (230, 734174), (322, 524410), (458, 368690), (460, 367087), (644, 262205), (805, 209764), (916, 184345), (1145, 147476), (1603, 105340), (1610, 104882), (2290, 73738), (3206, 52670), (3220, 52441), (4580, 36869), (5267, 32060), (6412, 26335), (8015, 21068), (10534, 16030)]