257788260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{751}}^1\times {\mathrm{1907}}^1$

素因数の和:2673

約数の個数: 72

約数和(自身を含む): 783409536

約数和(自身を除く): 525621276

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 751, 1502, 1907, 2253, 3004, 3755, 3814, 4506, 5721, 6759, 7510, 7628, 9012, 9535, 11265, 11442, 13518, 15020, 17163, 19070, 22530, 22884, 27036, 28605, 33795, 34326, 38140, 45060, 57210, 67590, 68652, 85815, 114420, 135180, 171630, 343260, 1432157, 2864314, 4296471, 5728628, 7160785, 8592942, 12889413, 14321570, 17185884, 21482355, 25778826, 28643140, 42964710, 51557652, 64447065, 85929420, 128894130, 257788260]

約数ペア:

[(1, 257788260), (2, 128894130), (3, 85929420), (4, 64447065), (5, 51557652), (6, 42964710), (9, 28643140), (10, 25778826), (12, 21482355), (15, 17185884), (18, 14321570), (20, 12889413), (30, 8592942), (36, 7160785), (45, 5728628), (60, 4296471), (90, 2864314), (180, 1432157), (751, 343260), (1502, 171630), (1907, 135180), (2253, 114420), (3004, 85815), (3755, 68652), (3814, 67590), (4506, 57210), (5721, 45060), (6759, 38140), (7510, 34326), (7628, 33795), (9012, 28605), (9535, 27036), (11265, 22884), (11442, 22530), (13518, 19070), (15020, 17163)]