252800

素因数分解:

$2^7\times 5^2\times {\mathrm{79}}^1$

素因数の和:103

約数の個数: 48

約数和(自身を含む): 632400

約数和(自身を除く): 379600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 79, 80, 100, 128, 158, 160, 200, 316, 320, 395, 400, 632, 640, 790, 800, 1264, 1580, 1600, 1975, 2528, 3160, 3200, 3950, 5056, 6320, 7900, 10112, 12640, 15800, 25280, 31600, 50560, 63200, 126400, 252800]

約数ペア:

[(1, 252800), (2, 126400), (4, 63200), (5, 50560), (8, 31600), (10, 25280), (16, 15800), (20, 12640), (25, 10112), (32, 7900), (40, 6320), (50, 5056), (64, 3950), (79, 3200), (80, 3160), (100, 2528), (128, 1975), (158, 1600), (160, 1580), (200, 1264), (316, 800), (320, 790), (395, 640), (400, 632)]