261779518

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{571}}^1$

素因数の和:833

約数の個数: 64

約数和(自身を含む): 530449920

約数和(自身を除く): 268670402

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 77, 91, 143, 154, 182, 229, 286, 458, 571, 1001, 1142, 1603, 2002, 2519, 2977, 3206, 3997, 5038, 5954, 6281, 7423, 7994, 12562, 14846, 17633, 20839, 32747, 35266, 41678, 43967, 51961, 65494, 81653, 87934, 103922, 130759, 163306, 229229, 261518, 458458, 571571, 915313, 1143142, 1438349, 1699867, 1830626, 2876698, 3399734, 10068443, 11899069, 18698537, 20136886, 23798138, 37397074, 130889759, 261779518]

約数ペア:

[(1, 261779518), (2, 130889759), (7, 37397074), (11, 23798138), (13, 20136886), (14, 18698537), (22, 11899069), (26, 10068443), (77, 3399734), (91, 2876698), (143, 1830626), (154, 1699867), (182, 1438349), (229, 1143142), (286, 915313), (458, 571571), (571, 458458), (1001, 261518), (1142, 229229), (1603, 163306), (2002, 130759), (2519, 103922), (2977, 87934), (3206, 81653), (3997, 65494), (5038, 51961), (5954, 43967), (6281, 41678), (7423, 35266), (7994, 32747), (12562, 20839), (14846, 17633)]