28974880

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{163}}^1$

素因数の和:290

約数の個数: 96

約数和(自身を含む): 75878208

約数和(自身を除く): 46903328

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 101, 110, 160, 163, 176, 202, 220, 326, 352, 404, 440, 505, 652, 808, 815, 880, 1010, 1111, 1304, 1616, 1630, 1760, 1793, 2020, 2222, 2608, 3232, 3260, 3586, 4040, 4444, 5216, 5555, 6520, 7172, 8080, 8888, 8965, 11110, 13040, 14344, 16160, 16463, 17776, 17930, 22220, 26080, 28688, 32926, 35552, 35860, 44440, 57376, 65852, 71720, 82315, 88880, 131704, 143440, 164630, 177760, 181093, 263408, 286880, 329260, 362186, 526816, 658520, 724372, 905465, 1317040, 1448744, 1810930, 2634080, 2897488, 3621860, 5794976, 7243720, 14487440, 28974880]

約数ペア:

[(1, 28974880), (2, 14487440), (4, 7243720), (5, 5794976), (8, 3621860), (10, 2897488), (11, 2634080), (16, 1810930), (20, 1448744), (22, 1317040), (32, 905465), (40, 724372), (44, 658520), (55, 526816), (80, 362186), (88, 329260), (101, 286880), (110, 263408), (160, 181093), (163, 177760), (176, 164630), (202, 143440), (220, 131704), (326, 88880), (352, 82315), (404, 71720), (440, 65852), (505, 57376), (652, 44440), (808, 35860), (815, 35552), (880, 32926), (1010, 28688), (1111, 26080), (1304, 22220), (1616, 17930), (1630, 17776), (1760, 16463), (1793, 16160), (2020, 14344), (2222, 13040), (2608, 11110), (3232, 8965), (3260, 8888), (3586, 8080), (4040, 7172), (4444, 6520), (5216, 5555)]