778960028

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{179}}^1\times {\mathrm{199}}^1$

素因数の和:471

約数の個数: 96

約数和(自身を含む): 1741824000

約数和(自身を除く): 962863972

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 71, 77, 142, 154, 179, 199, 284, 308, 358, 398, 497, 716, 781, 796, 994, 1253, 1393, 1562, 1969, 1988, 2189, 2506, 2786, 3124, 3938, 4378, 5012, 5467, 5572, 7876, 8756, 10934, 12709, 13783, 14129, 15323, 21868, 25418, 27566, 28258, 30646, 35621, 50836, 55132, 56516, 61292, 71242, 88963, 98903, 139799, 142484, 155419, 177926, 197806, 249347, 279598, 310838, 355852, 391831, 395612, 498694, 559196, 621676, 783662, 978593, 997388, 1087933, 1567324, 1957186, 2175866, 2529091, 2742817, 3914372, 4351732, 5058182, 5485634, 10116364, 10971268, 17703637, 27820001, 35407274, 55640002, 70814548, 111280004, 194740007, 389480014, 778960028]

約数ペア:

[(1, 778960028), (2, 389480014), (4, 194740007), (7, 111280004), (11, 70814548), (14, 55640002), (22, 35407274), (28, 27820001), (44, 17703637), (71, 10971268), (77, 10116364), (142, 5485634), (154, 5058182), (179, 4351732), (199, 3914372), (284, 2742817), (308, 2529091), (358, 2175866), (398, 1957186), (497, 1567324), (716, 1087933), (781, 997388), (796, 978593), (994, 783662), (1253, 621676), (1393, 559196), (1562, 498694), (1969, 395612), (1988, 391831), (2189, 355852), (2506, 310838), (2786, 279598), (3124, 249347), (3938, 197806), (4378, 177926), (5012, 155419), (5467, 142484), (5572, 139799), (7876, 98903), (8756, 88963), (10934, 71242), (12709, 61292), (13783, 56516), (14129, 55132), (15323, 50836), (21868, 35621), (25418, 30646), (27566, 28258)]