28613840

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{15551}}^1$

素因数の和:15587

約数の個数: 40

約数和(自身を含む): 69424128

約数和(自身を除く): 40810288

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 15551, 31102, 62204, 77755, 124408, 155510, 248816, 311020, 357673, 622040, 715346, 1244080, 1430692, 1788365, 2861384, 3576730, 5722768, 7153460, 14306920, 28613840]

約数ペア:

[(1, 28613840), (2, 14306920), (4, 7153460), (5, 5722768), (8, 3576730), (10, 2861384), (16, 1788365), (20, 1430692), (23, 1244080), (40, 715346), (46, 622040), (80, 357673), (92, 311020), (115, 248816), (184, 155510), (230, 124408), (368, 77755), (460, 62204), (920, 31102), (1840, 15551)]