216320

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^2$

素因数の和:47

約数の個数: 54

約数和(自身を含む): 561078

約数和(自身を除く): 344758

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 169, 208, 256, 260, 320, 338, 416, 520, 640, 676, 832, 845, 1040, 1280, 1352, 1664, 1690, 2080, 2704, 3328, 3380, 4160, 5408, 6760, 8320, 10816, 13520, 16640, 21632, 27040, 43264, 54080, 108160, 216320]

約数ペア:

[(1, 216320), (2, 108160), (4, 54080), (5, 43264), (8, 27040), (10, 21632), (13, 16640), (16, 13520), (20, 10816), (26, 8320), (32, 6760), (40, 5408), (52, 4160), (64, 3380), (65, 3328), (80, 2704), (104, 2080), (128, 1690), (130, 1664), (160, 1352), (169, 1280), (208, 1040), (256, 845), (260, 832), (320, 676), (338, 640), (416, 520)]