16391420

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1\times {\mathrm{109}}^1$

素因数の和:294

約数の個数: 48

約数和(自身を含む): 35555520

約数和(自身を除く): 19164100

約数列:

[1, 2, 4, 5, 10, 20, 73, 103, 109, 146, 206, 218, 292, 365, 412, 436, 515, 545, 730, 1030, 1090, 1460, 2060, 2180, 7519, 7957, 11227, 15038, 15914, 22454, 30076, 31828, 37595, 39785, 44908, 56135, 75190, 79570, 112270, 150380, 159140, 224540, 819571, 1639142, 3278284, 4097855, 8195710, 16391420]

約数ペア:

[(1, 16391420), (2, 8195710), (4, 4097855), (5, 3278284), (10, 1639142), (20, 819571), (73, 224540), (103, 159140), (109, 150380), (146, 112270), (206, 79570), (218, 75190), (292, 56135), (365, 44908), (412, 39785), (436, 37595), (515, 31828), (545, 30076), (730, 22454), (1030, 15914), (1090, 15038), (1460, 11227), (2060, 7957), (2180, 7519)]