42465890

素因数分解:

$2^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1\times {\mathrm{223}}^1$

素因数の和:506

約数の個数: 32

約数和(自身を含む): 77898240

約数和(自身を除く): 35432350

約数列:

[1, 2, 5, 10, 137, 139, 223, 274, 278, 446, 685, 695, 1115, 1370, 1390, 2230, 19043, 30551, 30997, 38086, 61102, 61994, 95215, 152755, 154985, 190430, 305510, 309970, 4246589, 8493178, 21232945, 42465890]

約数ペア:

[(1, 42465890), (2, 21232945), (5, 8493178), (10, 4246589), (137, 309970), (139, 305510), (223, 190430), (274, 154985), (278, 152755), (446, 95215), (685, 61994), (695, 61102), (1115, 38086), (1370, 30997), (1390, 30551), (2230, 19043)]