25396215

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1$

素因数の和:248

約数の個数: 64

約数和(自身を含む): 47609856

約数和(自身を除く): 22213641

約数列:

[1, 3, 5, 13, 15, 17, 39, 47, 51, 65, 85, 141, 163, 195, 221, 235, 255, 489, 611, 663, 705, 799, 815, 1105, 1833, 2119, 2397, 2445, 2771, 3055, 3315, 3995, 6357, 7661, 8313, 9165, 10387, 10595, 11985, 13855, 22983, 31161, 31785, 36023, 38305, 41565, 51935, 99593, 108069, 114915, 130237, 155805, 180115, 298779, 390711, 497965, 540345, 651185, 1493895, 1693081, 1953555, 5079243, 8465405, 25396215]

約数ペア:

[(1, 25396215), (3, 8465405), (5, 5079243), (13, 1953555), (15, 1693081), (17, 1493895), (39, 651185), (47, 540345), (51, 497965), (65, 390711), (85, 298779), (141, 180115), (163, 155805), (195, 130237), (221, 114915), (235, 108069), (255, 99593), (489, 51935), (611, 41565), (663, 38305), (705, 36023), (799, 31785), (815, 31161), (1105, 22983), (1833, 13855), (2119, 11985), (2397, 10595), (2445, 10387), (2771, 9165), (3055, 8313), (3315, 7661), (3995, 6357)]