28121445

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{653}}^1$

素因数の和:707

約数の個数: 64

約数和(自身を含む): 56505600

約数和(自身を除く): 28384155

約数列:

[1, 3, 5, 9, 11, 15, 27, 29, 33, 45, 55, 87, 99, 135, 145, 165, 261, 297, 319, 435, 495, 653, 783, 957, 1305, 1485, 1595, 1959, 2871, 3265, 3915, 4785, 5877, 7183, 8613, 9795, 14355, 17631, 18937, 21549, 29385, 35915, 43065, 56811, 64647, 88155, 94685, 107745, 170433, 193941, 208307, 284055, 323235, 511299, 624921, 852165, 969705, 1041535, 1874763, 2556495, 3124605, 5624289, 9373815, 28121445]

約数ペア:

[(1, 28121445), (3, 9373815), (5, 5624289), (9, 3124605), (11, 2556495), (15, 1874763), (27, 1041535), (29, 969705), (33, 852165), (45, 624921), (55, 511299), (87, 323235), (99, 284055), (135, 208307), (145, 193941), (165, 170433), (261, 107745), (297, 94685), (319, 88155), (435, 64647), (495, 56811), (653, 43065), (783, 35915), (957, 29385), (1305, 21549), (1485, 18937), (1595, 17631), (1959, 14355), (2871, 9795), (3265, 8613), (3915, 7183), (4785, 5877)]