4379890

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1$

素因数の和:306

約数の個数: 32

約数和(自身を含む): 8346240

約数和(自身を除く): 3966350

約数列:

[1, 2, 5, 10, 23, 46, 115, 137, 139, 230, 274, 278, 685, 695, 1370, 1390, 3151, 3197, 6302, 6394, 15755, 15985, 19043, 31510, 31970, 38086, 95215, 190430, 437989, 875978, 2189945, 4379890]

約数ペア:

[(1, 4379890), (2, 2189945), (5, 875978), (10, 437989), (23, 190430), (46, 95215), (115, 38086), (137, 31970), (139, 31510), (230, 19043), (274, 15985), (278, 15755), (685, 6394), (695, 6302), (1370, 3197), (1390, 3151)]