289943706

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1\times {\mathrm{509}}^1$

素因数の和:703

約数の個数: 64

約数和(自身を含む): 640886400

約数和(自身を除く): 350942694

約数列:

[1, 2, 3, 6, 13, 26, 39, 67, 78, 109, 134, 201, 218, 327, 402, 509, 654, 871, 1018, 1417, 1527, 1742, 2613, 2834, 3054, 4251, 5226, 6617, 7303, 8502, 13234, 14606, 19851, 21909, 34103, 39702, 43818, 55481, 68206, 94939, 102309, 110962, 166443, 189878, 204618, 284817, 332886, 443339, 569634, 721253, 886678, 1330017, 1442506, 2163759, 2660034, 3717227, 4327518, 7434454, 11151681, 22303362, 48323951, 96647902, 144971853, 289943706]

約数ペア:

[(1, 289943706), (2, 144971853), (3, 96647902), (6, 48323951), (13, 22303362), (26, 11151681), (39, 7434454), (67, 4327518), (78, 3717227), (109, 2660034), (134, 2163759), (201, 1442506), (218, 1330017), (327, 886678), (402, 721253), (509, 569634), (654, 443339), (871, 332886), (1018, 284817), (1417, 204618), (1527, 189878), (1742, 166443), (2613, 110962), (2834, 102309), (3054, 94939), (4251, 68206), (5226, 55481), (6617, 43818), (7303, 39702), (8502, 34103), (13234, 21909), (14606, 19851)]