20199972416

素因数分解:

$2^6\times {\mathrm{13}}^2\times {\mathrm{1867601}}^1$

素因数の和:1867639

約数の個数: 42

約数和(自身を含む): 43404938082

約数和(自身を除く): 23204965666

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 169, 208, 338, 416, 676, 832, 1352, 2704, 5408, 10816, 1867601, 3735202, 7470404, 14940808, 24278813, 29881616, 48557626, 59763232, 97115252, 119526464, 194230504, 315624569, 388461008, 631249138, 776922016, 1262498276, 1553844032, 2524996552, 5049993104, 10099986208, 20199972416]

約数ペア:

[(1, 20199972416), (2, 10099986208), (4, 5049993104), (8, 2524996552), (13, 1553844032), (16, 1262498276), (26, 776922016), (32, 631249138), (52, 388461008), (64, 315624569), (104, 194230504), (169, 119526464), (208, 97115252), (338, 59763232), (416, 48557626), (676, 29881616), (832, 24278813), (1352, 14940808), (2704, 7470404), (5408, 3735202), (10816, 1867601)]