1209998405

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{1747}}^1$

素因数の和:2034

約数の個数: 48

約数和(自身を含む): 1850838336

約数和(自身を除く): 640839931

約数列:

[1, 5, 7, 11, 35, 49, 55, 77, 245, 257, 385, 539, 1285, 1747, 1799, 2695, 2827, 8735, 8995, 12229, 12593, 14135, 19217, 19789, 61145, 62965, 85603, 96085, 98945, 134519, 138523, 428015, 448979, 672595, 692615, 941633, 2244895, 3142853, 4708165, 4938769, 15714265, 21999971, 24693845, 34571383, 109999855, 172856915, 241999681, 1209998405]

約数ペア:

[(1, 1209998405), (5, 241999681), (7, 172856915), (11, 109999855), (35, 34571383), (49, 24693845), (55, 21999971), (77, 15714265), (245, 4938769), (257, 4708165), (385, 3142853), (539, 2244895), (1285, 941633), (1747, 692615), (1799, 672595), (2695, 448979), (2827, 428015), (8735, 138523), (8995, 134519), (12229, 98945), (12593, 96085), (14135, 85603), (19217, 62965), (19789, 61145)]