81353720

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{41507}}^1$

素因数の和:41532

約数の個数: 48

約数和(自身を含む): 212936040

約数和(自身を除く): 131582320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 41507, 83014, 166028, 207535, 290549, 332056, 415070, 581098, 830140, 1162196, 1452745, 1660280, 2033843, 2324392, 2905490, 4067686, 5810980, 8135372, 10169215, 11621960, 16270744, 20338430, 40676860, 81353720]

約数ペア:

[(1, 81353720), (2, 40676860), (4, 20338430), (5, 16270744), (7, 11621960), (8, 10169215), (10, 8135372), (14, 5810980), (20, 4067686), (28, 2905490), (35, 2324392), (40, 2033843), (49, 1660280), (56, 1452745), (70, 1162196), (98, 830140), (140, 581098), (196, 415070), (245, 332056), (280, 290549), (392, 207535), (490, 166028), (980, 83014), (1960, 41507)]