221528720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{5419}}^1$

素因数の和:5512

約数の個数: 80

約数和(自身を含む): 596807040

約数和(自身を除く): 375278320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 73, 80, 112, 140, 146, 280, 292, 365, 511, 560, 584, 730, 1022, 1168, 1460, 2044, 2555, 2920, 4088, 5110, 5419, 5840, 8176, 10220, 10838, 20440, 21676, 27095, 37933, 40880, 43352, 54190, 75866, 86704, 108380, 151732, 189665, 216760, 303464, 379330, 395587, 433520, 606928, 758660, 791174, 1517320, 1582348, 1977935, 2769109, 3034640, 3164696, 3955870, 5538218, 6329392, 7911740, 11076436, 13845545, 15823480, 22152872, 27691090, 31646960, 44305744, 55382180, 110764360, 221528720]

約数ペア:

[(1, 221528720), (2, 110764360), (4, 55382180), (5, 44305744), (7, 31646960), (8, 27691090), (10, 22152872), (14, 15823480), (16, 13845545), (20, 11076436), (28, 7911740), (35, 6329392), (40, 5538218), (56, 3955870), (70, 3164696), (73, 3034640), (80, 2769109), (112, 1977935), (140, 1582348), (146, 1517320), (280, 791174), (292, 758660), (365, 606928), (511, 433520), (560, 395587), (584, 379330), (730, 303464), (1022, 216760), (1168, 189665), (1460, 151732), (2044, 108380), (2555, 86704), (2920, 75866), (4088, 54190), (5110, 43352), (5419, 40880), (5840, 37933), (8176, 27095), (10220, 21676), (10838, 20440)]