28778520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{10427}}^1$

素因数の和:10464

約数の個数: 64

約数和(自身を含む): 90097920

約数和(自身を除く): 61319400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 138, 184, 230, 276, 345, 460, 552, 690, 920, 1380, 2760, 10427, 20854, 31281, 41708, 52135, 62562, 83416, 104270, 125124, 156405, 208540, 239821, 250248, 312810, 417080, 479642, 625620, 719463, 959284, 1199105, 1251240, 1438926, 1918568, 2398210, 2877852, 3597315, 4796420, 5755704, 7194630, 9592840, 14389260, 28778520]

約数ペア:

[(1, 28778520), (2, 14389260), (3, 9592840), (4, 7194630), (5, 5755704), (6, 4796420), (8, 3597315), (10, 2877852), (12, 2398210), (15, 1918568), (20, 1438926), (23, 1251240), (24, 1199105), (30, 959284), (40, 719463), (46, 625620), (60, 479642), (69, 417080), (92, 312810), (115, 250248), (120, 239821), (138, 208540), (184, 156405), (230, 125124), (276, 104270), (345, 83416), (460, 62562), (552, 52135), (690, 41708), (920, 31281), (1380, 20854), (2760, 10427)]