164720

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:113

約数の個数: 40

約数和(自身を含む): 401760

約数和(自身を除く): 237040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 71, 80, 116, 142, 145, 232, 284, 290, 355, 464, 568, 580, 710, 1136, 1160, 1420, 2059, 2320, 2840, 4118, 5680, 8236, 10295, 16472, 20590, 32944, 41180, 82360, 164720]

約数ペア:

[(1, 164720), (2, 82360), (4, 41180), (5, 32944), (8, 20590), (10, 16472), (16, 10295), (20, 8236), (29, 5680), (40, 4118), (58, 2840), (71, 2320), (80, 2059), (116, 1420), (142, 1160), (145, 1136), (232, 710), (284, 580), (290, 568), (355, 464)]