28937340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{373}}^1\times {\mathrm{431}}^1$

素因数の和:819

約数の個数: 72

約数和(自身を含む): 88216128

約数和(自身を除く): 59278788

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 373, 431, 746, 862, 1119, 1293, 1492, 1724, 1865, 2155, 2238, 2586, 3357, 3730, 3879, 4310, 4476, 5172, 5595, 6465, 6714, 7460, 7758, 8620, 11190, 12930, 13428, 15516, 16785, 19395, 22380, 25860, 33570, 38790, 67140, 77580, 160763, 321526, 482289, 643052, 803815, 964578, 1446867, 1607630, 1929156, 2411445, 2893734, 3215260, 4822890, 5787468, 7234335, 9645780, 14468670, 28937340]

約数ペア:

[(1, 28937340), (2, 14468670), (3, 9645780), (4, 7234335), (5, 5787468), (6, 4822890), (9, 3215260), (10, 2893734), (12, 2411445), (15, 1929156), (18, 1607630), (20, 1446867), (30, 964578), (36, 803815), (45, 643052), (60, 482289), (90, 321526), (180, 160763), (373, 77580), (431, 67140), (746, 38790), (862, 33570), (1119, 25860), (1293, 22380), (1492, 19395), (1724, 16785), (1865, 15516), (2155, 13428), (2238, 12930), (2586, 11190), (3357, 8620), (3730, 7758), (3879, 7460), (4310, 6714), (4476, 6465), (5172, 5595)]