251381208

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{4943}}^1$

素因数の和:5128

約数の個数: 64

約数和(自身を含む): 681085440

約数和(自身を除く): 429704232

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 163, 312, 326, 489, 652, 978, 1304, 1956, 2119, 3912, 4238, 4943, 6357, 8476, 9886, 12714, 14829, 16952, 19772, 25428, 29658, 39544, 50856, 59316, 64259, 118632, 128518, 192777, 257036, 385554, 514072, 771108, 805709, 1542216, 1611418, 2417127, 3222836, 4834254, 6445672, 9668508, 10474217, 19337016, 20948434, 31422651, 41896868, 62845302, 83793736, 125690604, 251381208]

約数ペア:

[(1, 251381208), (2, 125690604), (3, 83793736), (4, 62845302), (6, 41896868), (8, 31422651), (12, 20948434), (13, 19337016), (24, 10474217), (26, 9668508), (39, 6445672), (52, 4834254), (78, 3222836), (104, 2417127), (156, 1611418), (163, 1542216), (312, 805709), (326, 771108), (489, 514072), (652, 385554), (978, 257036), (1304, 192777), (1956, 128518), (2119, 118632), (3912, 64259), (4238, 59316), (4943, 50856), (6357, 39544), (8476, 29658), (9886, 25428), (12714, 19772), (14829, 16952)]