291223642480

素因数分解:

$2^4\times 5^1\times {\mathrm{3640295531}}^1$

素因数の和:3640295544

約数の個数: 20

約数和(自身を含む): 677094968952

約数和(自身を除く): 385871326472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3640295531, 7280591062, 14561182124, 18201477655, 29122364248, 36402955310, 58244728496, 72805910620, 145611821240, 291223642480]

約数ペア:

[(1, 291223642480), (2, 145611821240), (4, 72805910620), (5, 58244728496), (8, 36402955310), (10, 29122364248), (16, 18201477655), (20, 14561182124), (40, 7280591062), (80, 3640295531)]