16521720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1051}}^1$

素因数の和:1196

約数の個数: 64

約数和(自身を含む): 49991040

約数和(自身を除く): 33469320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 131, 262, 393, 524, 655, 786, 1048, 1051, 1310, 1572, 1965, 2102, 2620, 3144, 3153, 3930, 4204, 5240, 5255, 6306, 7860, 8408, 10510, 12612, 15720, 15765, 21020, 25224, 31530, 42040, 63060, 126120, 137681, 275362, 413043, 550724, 688405, 826086, 1101448, 1376810, 1652172, 2065215, 2753620, 3304344, 4130430, 5507240, 8260860, 16521720]

約数ペア:

[(1, 16521720), (2, 8260860), (3, 5507240), (4, 4130430), (5, 3304344), (6, 2753620), (8, 2065215), (10, 1652172), (12, 1376810), (15, 1101448), (20, 826086), (24, 688405), (30, 550724), (40, 413043), (60, 275362), (120, 137681), (131, 126120), (262, 63060), (393, 42040), (524, 31530), (655, 25224), (786, 21020), (1048, 15765), (1051, 15720), (1310, 12612), (1572, 10510), (1965, 8408), (2102, 7860), (2620, 6306), (3144, 5255), (3153, 5240), (3930, 4204)]