257245688

素因数分解:

$2^3\times 7^2\times {\mathrm{31}}^1\times {\mathrm{21169}}^1$

素因数の和:21220

約数の個数: 48

約数和(自身を含む): 579211200

約数和(自身を除く): 321965512

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 49, 56, 62, 98, 124, 196, 217, 248, 392, 434, 868, 1519, 1736, 3038, 6076, 12152, 21169, 42338, 84676, 148183, 169352, 296366, 592732, 656239, 1037281, 1185464, 1312478, 2074562, 2624956, 4149124, 4593673, 5249912, 8298248, 9187346, 18374692, 32155711, 36749384, 64311422, 128622844, 257245688]

約数ペア:

[(1, 257245688), (2, 128622844), (4, 64311422), (7, 36749384), (8, 32155711), (14, 18374692), (28, 9187346), (31, 8298248), (49, 5249912), (56, 4593673), (62, 4149124), (98, 2624956), (124, 2074562), (196, 1312478), (217, 1185464), (248, 1037281), (392, 656239), (434, 592732), (868, 296366), (1519, 169352), (1736, 148183), (3038, 84676), (6076, 42338), (12152, 21169)]