16981270900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{812501}}^1$

素因数の和:812545

約数の個数: 72

約数和(自身を含む): 42315104160

約数和(自身を除く): 25333833260

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 25, 38, 44, 50, 55, 76, 95, 100, 110, 190, 209, 220, 275, 380, 418, 475, 550, 836, 950, 1045, 1100, 1900, 2090, 4180, 5225, 10450, 20900, 812501, 1625002, 3250004, 4062505, 8125010, 8937511, 15437519, 16250020, 17875022, 20312525, 30875038, 35750044, 40625050, 44687555, 61750076, 77187595, 81250100, 89375110, 154375190, 169812709, 178750220, 223437775, 308750380, 339625418, 385937975, 446875550, 679250836, 771875950, 849063545, 893751100, 1543751900, 1698127090, 3396254180, 4245317725, 8490635450, 16981270900]

約数ペア:

[(1, 16981270900), (2, 8490635450), (4, 4245317725), (5, 3396254180), (10, 1698127090), (11, 1543751900), (19, 893751100), (20, 849063545), (22, 771875950), (25, 679250836), (38, 446875550), (44, 385937975), (50, 339625418), (55, 308750380), (76, 223437775), (95, 178750220), (100, 169812709), (110, 154375190), (190, 89375110), (209, 81250100), (220, 77187595), (275, 61750076), (380, 44687555), (418, 40625050), (475, 35750044), (550, 30875038), (836, 20312525), (950, 17875022), (1045, 16250020), (1100, 15437519), (1900, 8937511), (2090, 8125010), (4180, 4062505), (5225, 3250004), (10450, 1625002), (20900, 812501)]