28525860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{14407}}^1$

素因数の和:14433

約数の個数: 72

約数和(自身を含む): 94401216

約数和(自身を除く): 65875356

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 14407, 28814, 43221, 57628, 72035, 86442, 129663, 144070, 158477, 172884, 216105, 259326, 288140, 316954, 432210, 475431, 518652, 633908, 648315, 792385, 864420, 950862, 1296630, 1426293, 1584770, 1901724, 2377155, 2593260, 2852586, 3169540, 4754310, 5705172, 7131465, 9508620, 14262930, 28525860]

約数ペア:

[(1, 28525860), (2, 14262930), (3, 9508620), (4, 7131465), (5, 5705172), (6, 4754310), (9, 3169540), (10, 2852586), (11, 2593260), (12, 2377155), (15, 1901724), (18, 1584770), (20, 1426293), (22, 1296630), (30, 950862), (33, 864420), (36, 792385), (44, 648315), (45, 633908), (55, 518652), (60, 475431), (66, 432210), (90, 316954), (99, 288140), (110, 259326), (132, 216105), (165, 172884), (180, 158477), (198, 144070), (220, 129663), (330, 86442), (396, 72035), (495, 57628), (660, 43221), (990, 28814), (1980, 14407)]