19770420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{3023}}^1$

素因数の和:3144

約数の個数: 48

約数和(自身を含む): 55883520

約数和(自身を除く): 36113100

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 109, 218, 327, 436, 545, 654, 1090, 1308, 1635, 2180, 3023, 3270, 6046, 6540, 9069, 12092, 15115, 18138, 30230, 36276, 45345, 60460, 90690, 181380, 329507, 659014, 988521, 1318028, 1647535, 1977042, 3295070, 3954084, 4942605, 6590140, 9885210, 19770420]

約数ペア:

[(1, 19770420), (2, 9885210), (3, 6590140), (4, 4942605), (5, 3954084), (6, 3295070), (10, 1977042), (12, 1647535), (15, 1318028), (20, 988521), (30, 659014), (60, 329507), (109, 181380), (218, 90690), (327, 60460), (436, 45345), (545, 36276), (654, 30230), (1090, 18138), (1308, 15115), (1635, 12092), (2180, 9069), (3023, 6540), (3270, 6046)]