20199976784

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{881}}^1\times {\mathrm{110233}}^1$

素因数の和:111135

約数の個数: 40

約数和(自身を含む): 42196252392

約数和(自身を除く): 21996275608

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 881, 1762, 3524, 7048, 11453, 14096, 22906, 45812, 91624, 110233, 183248, 220466, 440932, 881864, 1433029, 1763728, 2866058, 5732116, 11464232, 22928464, 97115273, 194230546, 388461092, 776922184, 1262498549, 1553844368, 2524997098, 5049994196, 10099988392, 20199976784]

約数ペア:

[(1, 20199976784), (2, 10099988392), (4, 5049994196), (8, 2524997098), (13, 1553844368), (16, 1262498549), (26, 776922184), (52, 388461092), (104, 194230546), (208, 97115273), (881, 22928464), (1762, 11464232), (3524, 5732116), (7048, 2866058), (11453, 1763728), (14096, 1433029), (22906, 881864), (45812, 440932), (91624, 220466), (110233, 183248)]