520000390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{4111}}^1$

素因数の和:4277

約数の個数: 64

約数和(自身を含む): 1160570880

約数和(自身を除く): 640570490

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 139, 182, 278, 455, 695, 910, 973, 1390, 1807, 1946, 3614, 4111, 4865, 8222, 9035, 9730, 12649, 18070, 20555, 25298, 28777, 41110, 53443, 57554, 63245, 106886, 126490, 143885, 267215, 287770, 374101, 534430, 571429, 748202, 1142858, 1870505, 2857145, 3741010, 4000003, 5714290, 7428577, 8000006, 14857154, 20000015, 37142885, 40000030, 52000039, 74285770, 104000078, 260000195, 520000390]

約数ペア:

[(1, 520000390), (2, 260000195), (5, 104000078), (7, 74285770), (10, 52000039), (13, 40000030), (14, 37142885), (26, 20000015), (35, 14857154), (65, 8000006), (70, 7428577), (91, 5714290), (130, 4000003), (139, 3741010), (182, 2857145), (278, 1870505), (455, 1142858), (695, 748202), (910, 571429), (973, 534430), (1390, 374101), (1807, 287770), (1946, 267215), (3614, 143885), (4111, 126490), (4865, 106886), (8222, 63245), (9035, 57554), (9730, 53443), (12649, 41110), (18070, 28777), (20555, 25298)]