561821995

素因数分解:

$5^1\times 7^4\times {\mathrm{53}}^1\times {\mathrm{883}}^1$

素因数の和:969

約数の個数: 40

約数和(自身を含む): 802251216

約数和(自身を除く): 240429221

約数列:

[1, 5, 7, 35, 49, 53, 245, 265, 343, 371, 883, 1715, 1855, 2401, 2597, 4415, 6181, 12005, 12985, 18179, 30905, 43267, 46799, 90895, 127253, 216335, 233995, 302869, 327593, 636265, 1514345, 1637965, 2120083, 2293151, 10600415, 11465755, 16052057, 80260285, 112364399, 561821995]

約数ペア:

[(1, 561821995), (5, 112364399), (7, 80260285), (35, 16052057), (49, 11465755), (53, 10600415), (245, 2293151), (265, 2120083), (343, 1637965), (371, 1514345), (883, 636265), (1715, 327593), (1855, 302869), (2401, 233995), (2597, 216335), (4415, 127253), (6181, 90895), (12005, 46799), (12985, 43267), (18179, 30905)]