20700450

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{157}}^1\times {\mathrm{293}}^1$

素因数の和:468

約数の個数: 72

約数和(自身を含む): 56160468

約数和(自身を除く): 35460018

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 90, 150, 157, 225, 293, 314, 450, 471, 586, 785, 879, 942, 1413, 1465, 1570, 1758, 2355, 2637, 2826, 2930, 3925, 4395, 4710, 5274, 7065, 7325, 7850, 8790, 11775, 13185, 14130, 14650, 21975, 23550, 26370, 35325, 43950, 46001, 65925, 70650, 92002, 131850, 138003, 230005, 276006, 414009, 460010, 690015, 828018, 1150025, 1380030, 2070045, 2300050, 3450075, 4140090, 6900150, 10350225, 20700450]

約数ペア:

[(1, 20700450), (2, 10350225), (3, 6900150), (5, 4140090), (6, 3450075), (9, 2300050), (10, 2070045), (15, 1380030), (18, 1150025), (25, 828018), (30, 690015), (45, 460010), (50, 414009), (75, 276006), (90, 230005), (150, 138003), (157, 131850), (225, 92002), (293, 70650), (314, 65925), (450, 46001), (471, 43950), (586, 35325), (785, 26370), (879, 23550), (942, 21975), (1413, 14650), (1465, 14130), (1570, 13185), (1758, 11775), (2355, 8790), (2637, 7850), (2826, 7325), (2930, 7065), (3925, 5274), (4395, 4710)]