278978856

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{16871}}^1$

素因数の和:16946

約数の個数: 64

約数和(自身を含む): 765313920

約数和(自身を除く): 486335064

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 53, 78, 104, 106, 156, 159, 212, 312, 318, 424, 636, 689, 1272, 1378, 2067, 2756, 4134, 5512, 8268, 16536, 16871, 33742, 50613, 67484, 101226, 134968, 202452, 219323, 404904, 438646, 657969, 877292, 894163, 1315938, 1754584, 1788326, 2631876, 2682489, 3576652, 5263752, 5364978, 7153304, 10729956, 11624119, 21459912, 23248238, 34872357, 46496476, 69744714, 92992952, 139489428, 278978856]

約数ペア:

[(1, 278978856), (2, 139489428), (3, 92992952), (4, 69744714), (6, 46496476), (8, 34872357), (12, 23248238), (13, 21459912), (24, 11624119), (26, 10729956), (39, 7153304), (52, 5364978), (53, 5263752), (78, 3576652), (104, 2682489), (106, 2631876), (156, 1788326), (159, 1754584), (212, 1315938), (312, 894163), (318, 877292), (424, 657969), (636, 438646), (689, 404904), (1272, 219323), (1378, 202452), (2067, 134968), (2756, 101226), (4134, 67484), (5512, 50613), (8268, 33742), (16536, 16871)]