257573238

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^2\times {\mathrm{389}}^1\times {\mathrm{653}}^1$

素因数の和:1073

約数の個数: 48

約数和(自身を含む): 560111760

約数和(自身を除く): 302538522

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 169, 338, 389, 507, 653, 778, 1014, 1167, 1306, 1959, 2334, 3918, 5057, 8489, 10114, 15171, 16978, 25467, 30342, 50934, 65741, 110357, 131482, 197223, 220714, 254017, 331071, 394446, 508034, 662142, 762051, 1524102, 3302221, 6604442, 9906663, 19813326, 42928873, 85857746, 128786619, 257573238]

約数ペア:

[(1, 257573238), (2, 128786619), (3, 85857746), (6, 42928873), (13, 19813326), (26, 9906663), (39, 6604442), (78, 3302221), (169, 1524102), (338, 762051), (389, 662142), (507, 508034), (653, 394446), (778, 331071), (1014, 254017), (1167, 220714), (1306, 197223), (1959, 131482), (2334, 110357), (3918, 65741), (5057, 50934), (8489, 30342), (10114, 25467), (15171, 16978)]