28578710

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{157}}^1\times {\mathrm{167}}^1$

素因数の和:440

約数の個数: 32

約数和(自身を含む): 52557120

約数和(自身を除く): 23978410

約数列:

[1, 2, 5, 10, 109, 157, 167, 218, 314, 334, 545, 785, 835, 1090, 1570, 1670, 17113, 18203, 26219, 34226, 36406, 52438, 85565, 91015, 131095, 171130, 182030, 262190, 2857871, 5715742, 14289355, 28578710]

約数ペア:

[(1, 28578710), (2, 14289355), (5, 5715742), (10, 2857871), (109, 262190), (157, 182030), (167, 171130), (218, 131095), (314, 91015), (334, 85565), (545, 52438), (785, 36406), (835, 34226), (1090, 26219), (1570, 18203), (1670, 17113)]