1987641680

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{293}}^1\times {\mathrm{4463}}^1$

素因数の和:4788

約数の個数: 80

約数和(自身を含む): 4882187520

約数和(自身を除く): 2894545840

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 293, 304, 380, 586, 760, 1172, 1465, 1520, 2344, 2930, 4463, 4688, 5567, 5860, 8926, 11134, 11720, 17852, 22268, 22315, 23440, 27835, 35704, 44536, 44630, 55670, 71408, 84797, 89072, 89260, 111340, 169594, 178520, 222680, 339188, 357040, 423985, 445360, 678376, 847970, 1307659, 1356752, 1695940, 2615318, 3391880, 5230636, 6538295, 6783760, 10461272, 13076590, 20922544, 24845521, 26153180, 49691042, 52306360, 99382084, 104612720, 124227605, 198764168, 248455210, 397528336, 496910420, 993820840, 1987641680]

約数ペア:

[(1, 1987641680), (2, 993820840), (4, 496910420), (5, 397528336), (8, 248455210), (10, 198764168), (16, 124227605), (19, 104612720), (20, 99382084), (38, 52306360), (40, 49691042), (76, 26153180), (80, 24845521), (95, 20922544), (152, 13076590), (190, 10461272), (293, 6783760), (304, 6538295), (380, 5230636), (586, 3391880), (760, 2615318), (1172, 1695940), (1465, 1356752), (1520, 1307659), (2344, 847970), (2930, 678376), (4463, 445360), (4688, 423985), (5567, 357040), (5860, 339188), (8926, 222680), (11134, 178520), (11720, 169594), (17852, 111340), (22268, 89260), (22315, 89072), (23440, 84797), (27835, 71408), (35704, 55670), (44536, 44630)]