25487840

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{3251}}^1$

素因数の和:3280

約数の個数: 72

約数和(自身を含む): 70067592

約数和(自身を除く): 44579752

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3251, 3920, 6502, 7840, 13004, 16255, 22757, 26008, 32510, 45514, 52016, 65020, 91028, 104032, 113785, 130040, 159299, 182056, 227570, 260080, 318598, 364112, 455140, 520160, 637196, 728224, 796495, 910280, 1274392, 1592990, 1820560, 2548784, 3185980, 3641120, 5097568, 6371960, 12743920, 25487840]

約数ペア:

[(1, 25487840), (2, 12743920), (4, 6371960), (5, 5097568), (7, 3641120), (8, 3185980), (10, 2548784), (14, 1820560), (16, 1592990), (20, 1274392), (28, 910280), (32, 796495), (35, 728224), (40, 637196), (49, 520160), (56, 455140), (70, 364112), (80, 318598), (98, 260080), (112, 227570), (140, 182056), (160, 159299), (196, 130040), (224, 113785), (245, 104032), (280, 91028), (392, 65020), (490, 52016), (560, 45514), (784, 32510), (980, 26008), (1120, 22757), (1568, 16255), (1960, 13004), (3251, 7840), (3920, 6502)]