31978768

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{1321}}^1$

素因数の和:1435

約数の個数: 40

約数和(自身を含む): 66390840

約数和(自身を除く): 34412072

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 89, 136, 178, 272, 356, 712, 1321, 1424, 1513, 2642, 3026, 5284, 6052, 10568, 12104, 21136, 22457, 24208, 44914, 89828, 117569, 179656, 235138, 359312, 470276, 940552, 1881104, 1998673, 3997346, 7994692, 15989384, 31978768]

約数ペア:

[(1, 31978768), (2, 15989384), (4, 7994692), (8, 3997346), (16, 1998673), (17, 1881104), (34, 940552), (68, 470276), (89, 359312), (136, 235138), (178, 179656), (272, 117569), (356, 89828), (712, 44914), (1321, 24208), (1424, 22457), (1513, 21136), (2642, 12104), (3026, 10568), (5284, 6052)]