25425040

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{389}}^1$

素因数の和:464

約数の個数: 80

約数和(自身を含む): 63835200

約数和(自身を除く): 38410160

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 43, 76, 80, 86, 95, 152, 172, 190, 215, 304, 344, 380, 389, 430, 688, 760, 778, 817, 860, 1520, 1556, 1634, 1720, 1945, 3112, 3268, 3440, 3890, 4085, 6224, 6536, 7391, 7780, 8170, 13072, 14782, 15560, 16340, 16727, 29564, 31120, 32680, 33454, 36955, 59128, 65360, 66908, 73910, 83635, 118256, 133816, 147820, 167270, 267632, 295640, 317813, 334540, 591280, 635626, 669080, 1271252, 1338160, 1589065, 2542504, 3178130, 5085008, 6356260, 12712520, 25425040]

約数ペア:

[(1, 25425040), (2, 12712520), (4, 6356260), (5, 5085008), (8, 3178130), (10, 2542504), (16, 1589065), (19, 1338160), (20, 1271252), (38, 669080), (40, 635626), (43, 591280), (76, 334540), (80, 317813), (86, 295640), (95, 267632), (152, 167270), (172, 147820), (190, 133816), (215, 118256), (304, 83635), (344, 73910), (380, 66908), (389, 65360), (430, 59128), (688, 36955), (760, 33454), (778, 32680), (817, 31120), (860, 29564), (1520, 16727), (1556, 16340), (1634, 15560), (1720, 14782), (1945, 13072), (3112, 8170), (3268, 7780), (3440, 7391), (3890, 6536), (4085, 6224)]