129021640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{3023}}^1$

素因数の和:3142

約数の個数: 64

約数和(自身を含む): 320060160

約数和(自身を除く): 191038520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 97, 110, 194, 220, 388, 440, 485, 776, 970, 1067, 1940, 2134, 3023, 3880, 4268, 5335, 6046, 8536, 10670, 12092, 15115, 21340, 24184, 30230, 33253, 42680, 60460, 66506, 120920, 133012, 166265, 266024, 293231, 332530, 586462, 665060, 1172924, 1330120, 1466155, 2345848, 2932310, 3225541, 5864620, 6451082, 11729240, 12902164, 16127705, 25804328, 32255410, 64510820, 129021640]

約数ペア:

[(1, 129021640), (2, 64510820), (4, 32255410), (5, 25804328), (8, 16127705), (10, 12902164), (11, 11729240), (20, 6451082), (22, 5864620), (40, 3225541), (44, 2932310), (55, 2345848), (88, 1466155), (97, 1330120), (110, 1172924), (194, 665060), (220, 586462), (388, 332530), (440, 293231), (485, 266024), (776, 166265), (970, 133012), (1067, 120920), (1940, 66506), (2134, 60460), (3023, 42680), (3880, 33253), (4268, 30230), (5335, 24184), (6046, 21340), (8536, 15115), (10670, 12092)]