278760456

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{431}}^1\times {\mathrm{691}}^1$

素因数の和:1147

約数の個数: 96

約数和(自身を含む): 816117120

約数和(自身を除く): 537356664

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 104, 117, 156, 234, 312, 431, 468, 691, 862, 936, 1293, 1382, 1724, 2073, 2586, 2764, 3448, 3879, 4146, 5172, 5528, 5603, 6219, 7758, 8292, 8983, 10344, 11206, 12438, 15516, 16584, 16809, 17966, 22412, 24876, 26949, 31032, 33618, 35932, 44824, 49752, 50427, 53898, 67236, 71864, 80847, 100854, 107796, 134472, 161694, 201708, 215592, 297821, 323388, 403416, 595642, 646776, 893463, 1191284, 1786926, 2382568, 2680389, 3573852, 3871673, 5360778, 7147704, 7743346, 10721556, 11615019, 15486692, 21443112, 23230038, 30973384, 34845057, 46460076, 69690114, 92920152, 139380228, 278760456]

約数ペア:

[(1, 278760456), (2, 139380228), (3, 92920152), (4, 69690114), (6, 46460076), (8, 34845057), (9, 30973384), (12, 23230038), (13, 21443112), (18, 15486692), (24, 11615019), (26, 10721556), (36, 7743346), (39, 7147704), (52, 5360778), (72, 3871673), (78, 3573852), (104, 2680389), (117, 2382568), (156, 1786926), (234, 1191284), (312, 893463), (431, 646776), (468, 595642), (691, 403416), (862, 323388), (936, 297821), (1293, 215592), (1382, 201708), (1724, 161694), (2073, 134472), (2586, 107796), (2764, 100854), (3448, 80847), (3879, 71864), (4146, 67236), (5172, 53898), (5528, 50427), (5603, 49752), (6219, 44824), (7758, 35932), (8292, 33618), (8983, 31032), (10344, 26949), (11206, 24876), (12438, 22412), (15516, 17966), (16584, 16809)]