978125980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{827}}^1\times {\mathrm{4549}}^1$

素因数の和:5398

約数の個数: 48

約数和(自身を含む): 2215231200

約数和(自身を除く): 1237105220

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 827, 1654, 3308, 4135, 4549, 8270, 9098, 10751, 16540, 18196, 21502, 22745, 43004, 45490, 53755, 59137, 90980, 107510, 118274, 215020, 236548, 295685, 591370, 1182740, 3762023, 7524046, 15048092, 18810115, 37620230, 48906299, 75240460, 97812598, 195625196, 244531495, 489062990, 978125980]

約数ペア:

[(1, 978125980), (2, 489062990), (4, 244531495), (5, 195625196), (10, 97812598), (13, 75240460), (20, 48906299), (26, 37620230), (52, 18810115), (65, 15048092), (130, 7524046), (260, 3762023), (827, 1182740), (1654, 591370), (3308, 295685), (4135, 236548), (4549, 215020), (8270, 118274), (9098, 107510), (10751, 90980), (16540, 59137), (18196, 53755), (21502, 45490), (22745, 43004)]