80681344

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{20333}}^1$

素因数の和:20378

約数の個数: 32

約数和(自身を含む): 165925440

約数和(自身を除く): 85244096

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 496, 992, 1984, 3968, 20333, 40666, 81332, 162664, 325328, 630323, 650656, 1260646, 1301312, 2521292, 2602624, 5042584, 10085168, 20170336, 40340672, 80681344]

約数ペア:

[(1, 80681344), (2, 40340672), (4, 20170336), (8, 10085168), (16, 5042584), (31, 2602624), (32, 2521292), (62, 1301312), (64, 1260646), (124, 650656), (128, 630323), (248, 325328), (496, 162664), (992, 81332), (1984, 40666), (3968, 20333)]