90640863

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{821}}^1$

素因数の和:909

約数の個数: 40

約数和(自身を含む): 143225280

約数和(自身を除く): 52584417

約数列:

[1, 3, 9, 27, 29, 47, 81, 87, 141, 261, 423, 783, 821, 1269, 1363, 2349, 2463, 3807, 4089, 7389, 12267, 22167, 23809, 36801, 38587, 66501, 71427, 110403, 115761, 214281, 347283, 642843, 1041849, 1119023, 1928529, 3125547, 3357069, 10071207, 30213621, 90640863]

約数ペア:

[(1, 90640863), (3, 30213621), (9, 10071207), (27, 3357069), (29, 3125547), (47, 1928529), (81, 1119023), (87, 1041849), (141, 642843), (261, 347283), (423, 214281), (783, 115761), (821, 110403), (1269, 71427), (1363, 66501), (2349, 38587), (2463, 36801), (3807, 23809), (4089, 22167), (7389, 12267)]