278793480

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{331897}}^1$

素因数の和:331918

約数の個数: 64

約数和(自身を含む): 955866240

約数和(自身を除く): 677072760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 331897, 663794, 995691, 1327588, 1659485, 1991382, 2323279, 2655176, 3318970, 3982764, 4646558, 4978455, 6637940, 6969837, 7965528, 9293116, 9956910, 11616395, 13275880, 13939674, 18586232, 19913820, 23232790, 27879348, 34849185, 39827640, 46465580, 55758696, 69698370, 92931160, 139396740, 278793480]

約数ペア:

[(1, 278793480), (2, 139396740), (3, 92931160), (4, 69698370), (5, 55758696), (6, 46465580), (7, 39827640), (8, 34849185), (10, 27879348), (12, 23232790), (14, 19913820), (15, 18586232), (20, 13939674), (21, 13275880), (24, 11616395), (28, 9956910), (30, 9293116), (35, 7965528), (40, 6969837), (42, 6637940), (56, 4978455), (60, 4646558), (70, 3982764), (84, 3318970), (105, 2655176), (120, 2323279), (140, 1991382), (168, 1659485), (210, 1327588), (280, 995691), (420, 663794), (840, 331897)]