278507208

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1\times {\mathrm{227}}^1$

素因数の和:419

約数の個数: 128

約数和(自身を含む): 818611200

約数和(自身を除く): 540103992

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 67, 84, 109, 134, 168, 201, 218, 227, 268, 327, 402, 436, 454, 469, 536, 654, 681, 763, 804, 872, 908, 938, 1308, 1362, 1407, 1526, 1589, 1608, 1816, 1876, 2289, 2616, 2724, 2814, 3052, 3178, 3752, 4578, 4767, 5448, 5628, 6104, 6356, 7303, 9156, 9534, 11256, 12712, 14606, 15209, 18312, 19068, 21909, 24743, 29212, 30418, 38136, 43818, 45627, 49486, 51121, 58424, 60836, 74229, 87636, 91254, 98972, 102242, 106463, 121672, 148458, 153363, 173201, 175272, 182508, 197944, 204484, 212926, 296916, 306726, 319389, 346402, 365016, 408968, 425852, 519603, 593832, 613452, 638778, 692804, 851704, 1039206, 1226904, 1277556, 1385608, 1657781, 2078412, 2555112, 3315562, 4156824, 4973343, 6631124, 9946686, 11604467, 13262248, 19893372, 23208934, 34813401, 39786744, 46417868, 69626802, 92835736, 139253604, 278507208]

約数ペア:

[(1, 278507208), (2, 139253604), (3, 92835736), (4, 69626802), (6, 46417868), (7, 39786744), (8, 34813401), (12, 23208934), (14, 19893372), (21, 13262248), (24, 11604467), (28, 9946686), (42, 6631124), (56, 4973343), (67, 4156824), (84, 3315562), (109, 2555112), (134, 2078412), (168, 1657781), (201, 1385608), (218, 1277556), (227, 1226904), (268, 1039206), (327, 851704), (402, 692804), (436, 638778), (454, 613452), (469, 593832), (536, 519603), (654, 425852), (681, 408968), (763, 365016), (804, 346402), (872, 319389), (908, 306726), (938, 296916), (1308, 212926), (1362, 204484), (1407, 197944), (1526, 182508), (1589, 175272), (1608, 173201), (1816, 153363), (1876, 148458), (2289, 121672), (2616, 106463), (2724, 102242), (2814, 98972), (3052, 91254), (3178, 87636), (3752, 74229), (4578, 60836), (4767, 58424), (5448, 51121), (5628, 49486), (6104, 45627), (6356, 43818), (7303, 38136), (9156, 30418), (9534, 29212), (11256, 24743), (12712, 21909), (14606, 19068), (15209, 18312)]