20178954416

素因数分解:

$2^4\times {\mathrm{181}}^1\times {\mathrm{191}}^3$

素因数の和:762

約数の個数: 40

約数和(自身を含む): 39519637248

約数和(自身を除く): 19340682832

約数列:

[1, 2, 4, 8, 16, 181, 191, 362, 382, 724, 764, 1448, 1528, 2896, 3056, 34571, 36481, 69142, 72962, 138284, 145924, 276568, 291848, 553136, 583696, 6603061, 6967871, 13206122, 13935742, 26412244, 27871484, 52824488, 55742968, 105648976, 111485936, 1261184651, 2522369302, 5044738604, 10089477208, 20178954416]

約数ペア:

[(1, 20178954416), (2, 10089477208), (4, 5044738604), (8, 2522369302), (16, 1261184651), (181, 111485936), (191, 105648976), (362, 55742968), (382, 52824488), (724, 27871484), (764, 26412244), (1448, 13935742), (1528, 13206122), (2896, 6967871), (3056, 6603061), (34571, 583696), (36481, 553136), (69142, 291848), (72962, 276568), (138284, 145924)]