2008784465

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{419}}^1\times {\mathrm{887}}^1$

素因数の和:1381

約数の個数: 32

約数和(自身を含む): 2577899520

約数和(自身を除く): 569115055

約数列:

[1, 5, 23, 47, 115, 235, 419, 887, 1081, 2095, 4435, 5405, 9637, 19693, 20401, 41689, 48185, 98465, 102005, 208445, 371653, 452939, 958847, 1858265, 2264695, 4794235, 8548019, 17467691, 42740095, 87338455, 401756893, 2008784465]

約数ペア:

[(1, 2008784465), (5, 401756893), (23, 87338455), (47, 42740095), (115, 17467691), (235, 8548019), (419, 4794235), (887, 2264695), (1081, 1858265), (2095, 958847), (4435, 452939), (5405, 371653), (9637, 208445), (19693, 102005), (20401, 98465), (41689, 48185)]