78428715

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{251}}^1\times {\mathrm{563}}^1$

素因数の和:859

約数の個数: 32

約数和(自身を含む): 129620736

約数和(自身を除く): 51192021

約数列:

[1, 3, 5, 15, 37, 111, 185, 251, 555, 563, 753, 1255, 1689, 2815, 3765, 8445, 9287, 20831, 27861, 46435, 62493, 104155, 139305, 141313, 312465, 423939, 706565, 2119695, 5228581, 15685743, 26142905, 78428715]

約数ペア:

[(1, 78428715), (3, 26142905), (5, 15685743), (15, 5228581), (37, 2119695), (111, 706565), (185, 423939), (251, 312465), (555, 141313), (563, 139305), (753, 104155), (1255, 62493), (1689, 46435), (2815, 27861), (3765, 20831), (8445, 9287)]