20040228

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{42821}}^1$

素因数の和:42844

約数の個数: 36

約数和(自身を含む): 54555228

約数和(自身を除く): 34515000

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 468, 42821, 85642, 128463, 171284, 256926, 385389, 513852, 556673, 770778, 1113346, 1541556, 1670019, 2226692, 3340038, 5010057, 6680076, 10020114, 20040228]

約数ペア:

[(1, 20040228), (2, 10020114), (3, 6680076), (4, 5010057), (6, 3340038), (9, 2226692), (12, 1670019), (13, 1541556), (18, 1113346), (26, 770778), (36, 556673), (39, 513852), (52, 385389), (78, 256926), (117, 171284), (156, 128463), (234, 85642), (468, 42821)]