257391108

素因数分解:

$2^2\times 3^4\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1153}}^1$

素因数の和:1235

約数の個数: 120

約数和(自身を含む): 738943128

約数和(自身を除く): 481552020

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 53, 54, 78, 81, 106, 108, 117, 156, 159, 162, 212, 234, 318, 324, 351, 468, 477, 636, 689, 702, 954, 1053, 1153, 1378, 1404, 1431, 1908, 2067, 2106, 2306, 2756, 2862, 3459, 4134, 4212, 4293, 4612, 5724, 6201, 6918, 8268, 8586, 10377, 12402, 13836, 14989, 17172, 18603, 20754, 24804, 29978, 31131, 37206, 41508, 44967, 55809, 59956, 61109, 62262, 74412, 89934, 93393, 111618, 122218, 124524, 134901, 179868, 183327, 186786, 223236, 244436, 269802, 366654, 373572, 404703, 539604, 549981, 733308, 794417, 809406, 1099962, 1214109, 1588834, 1618812, 1649943, 2199924, 2383251, 2428218, 3177668, 3299886, 4766502, 4856436, 4949829, 6599772, 7149753, 9533004, 9899658, 14299506, 19799316, 21449259, 28599012, 42898518, 64347777, 85797036, 128695554, 257391108]

約数ペア:

[(1, 257391108), (2, 128695554), (3, 85797036), (4, 64347777), (6, 42898518), (9, 28599012), (12, 21449259), (13, 19799316), (18, 14299506), (26, 9899658), (27, 9533004), (36, 7149753), (39, 6599772), (52, 4949829), (53, 4856436), (54, 4766502), (78, 3299886), (81, 3177668), (106, 2428218), (108, 2383251), (117, 2199924), (156, 1649943), (159, 1618812), (162, 1588834), (212, 1214109), (234, 1099962), (318, 809406), (324, 794417), (351, 733308), (468, 549981), (477, 539604), (636, 404703), (689, 373572), (702, 366654), (954, 269802), (1053, 244436), (1153, 223236), (1378, 186786), (1404, 183327), (1431, 179868), (1908, 134901), (2067, 124524), (2106, 122218), (2306, 111618), (2756, 93393), (2862, 89934), (3459, 74412), (4134, 62262), (4212, 61109), (4293, 59956), (4612, 55809), (5724, 44967), (6201, 41508), (6918, 37206), (8268, 31131), (8586, 29978), (10377, 24804), (12402, 20754), (13836, 18603), (14989, 17172)]