16563640

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{131}}^1$

素因数の和:280

約数の個数: 64

約数和(自身を含む): 39204000

約数和(自身を除く): 22640360

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 109, 116, 131, 145, 218, 232, 262, 290, 436, 524, 545, 580, 655, 872, 1048, 1090, 1160, 1310, 2180, 2620, 3161, 3799, 4360, 5240, 6322, 7598, 12644, 14279, 15196, 15805, 18995, 25288, 28558, 30392, 31610, 37990, 57116, 63220, 71395, 75980, 114232, 126440, 142790, 151960, 285580, 414091, 571160, 828182, 1656364, 2070455, 3312728, 4140910, 8281820, 16563640]

約数ペア:

[(1, 16563640), (2, 8281820), (4, 4140910), (5, 3312728), (8, 2070455), (10, 1656364), (20, 828182), (29, 571160), (40, 414091), (58, 285580), (109, 151960), (116, 142790), (131, 126440), (145, 114232), (218, 75980), (232, 71395), (262, 63220), (290, 57116), (436, 37990), (524, 31610), (545, 30392), (580, 28558), (655, 25288), (872, 18995), (1048, 15805), (1090, 15196), (1160, 14279), (1310, 12644), (2180, 7598), (2620, 6322), (3161, 5240), (3799, 4360)]