19965050

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{281}}^1$

素因数の和:336

約数の個数: 72

約数和(自身を含む): 44846460

約数和(自身を除く): 24881410

約数列:

[1, 2, 5, 7, 10, 14, 25, 29, 35, 49, 50, 58, 70, 98, 145, 175, 203, 245, 281, 290, 350, 406, 490, 562, 725, 1015, 1225, 1405, 1421, 1450, 1967, 2030, 2450, 2810, 2842, 3934, 5075, 7025, 7105, 8149, 9835, 10150, 13769, 14050, 14210, 16298, 19670, 27538, 35525, 40745, 49175, 57043, 68845, 71050, 81490, 98350, 114086, 137690, 203725, 285215, 344225, 399301, 407450, 570430, 688450, 798602, 1426075, 1996505, 2852150, 3993010, 9982525, 19965050]

約数ペア:

[(1, 19965050), (2, 9982525), (5, 3993010), (7, 2852150), (10, 1996505), (14, 1426075), (25, 798602), (29, 688450), (35, 570430), (49, 407450), (50, 399301), (58, 344225), (70, 285215), (98, 203725), (145, 137690), (175, 114086), (203, 98350), (245, 81490), (281, 71050), (290, 68845), (350, 57043), (406, 49175), (490, 40745), (562, 35525), (725, 27538), (1015, 19670), (1225, 16298), (1405, 14210), (1421, 14050), (1450, 13769), (1967, 10150), (2030, 9835), (2450, 8149), (2810, 7105), (2842, 7025), (3934, 5075)]