7830290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:147

約数の個数: 64

約数和(自身を含む): 16450560

約数和(自身を除く): 8620270

約数列:

[1, 2, 5, 10, 13, 26, 29, 31, 58, 62, 65, 67, 130, 134, 145, 155, 290, 310, 335, 377, 403, 670, 754, 806, 871, 899, 1742, 1798, 1885, 1943, 2015, 2077, 3770, 3886, 4030, 4154, 4355, 4495, 8710, 8990, 9715, 10385, 11687, 19430, 20770, 23374, 25259, 27001, 50518, 54002, 58435, 60233, 116870, 120466, 126295, 135005, 252590, 270010, 301165, 602330, 783029, 1566058, 3915145, 7830290]

約数ペア:

[(1, 7830290), (2, 3915145), (5, 1566058), (10, 783029), (13, 602330), (26, 301165), (29, 270010), (31, 252590), (58, 135005), (62, 126295), (65, 120466), (67, 116870), (130, 60233), (134, 58435), (145, 54002), (155, 50518), (290, 27001), (310, 25259), (335, 23374), (377, 20770), (403, 19430), (670, 11687), (754, 10385), (806, 9715), (871, 8990), (899, 8710), (1742, 4495), (1798, 4355), (1885, 4154), (1943, 4030), (2015, 3886), (2077, 3770)]