81497850

素因数分解:

$2^1\times 3^1\times 5^2\times 7^1\times {\mathrm{77617}}^1$

素因数の和:77639

約数の個数: 48

約数和(自身を含む): 230991168

約数和(自身を除く): 149493318

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 25, 30, 35, 42, 50, 70, 75, 105, 150, 175, 210, 350, 525, 1050, 77617, 155234, 232851, 388085, 465702, 543319, 776170, 1086638, 1164255, 1629957, 1940425, 2328510, 2716595, 3259914, 3880850, 5433190, 5821275, 8149785, 11642550, 13582975, 16299570, 27165950, 40748925, 81497850]

約数ペア:

[(1, 81497850), (2, 40748925), (3, 27165950), (5, 16299570), (6, 13582975), (7, 11642550), (10, 8149785), (14, 5821275), (15, 5433190), (21, 3880850), (25, 3259914), (30, 2716595), (35, 2328510), (42, 1940425), (50, 1629957), (70, 1164255), (75, 1086638), (105, 776170), (150, 543319), (175, 465702), (210, 388085), (350, 232851), (525, 155234), (1050, 77617)]