161157040

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{367}}^1\times {\mathrm{499}}^1$

素因数の和:890

約数の個数: 80

約数和(自身を含む): 410688000

約数和(自身を除く): 249530960

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 367, 440, 499, 734, 880, 998, 1468, 1835, 1996, 2495, 2936, 3670, 3992, 4037, 4990, 5489, 5872, 7340, 7984, 8074, 9980, 10978, 14680, 16148, 19960, 20185, 21956, 27445, 29360, 32296, 39920, 40370, 43912, 54890, 64592, 80740, 87824, 109780, 161480, 183133, 219560, 322960, 366266, 439120, 732532, 915665, 1465064, 1831330, 2014463, 2930128, 3662660, 4028926, 7325320, 8057852, 10072315, 14650640, 16115704, 20144630, 32231408, 40289260, 80578520, 161157040]

約数ペア:

[(1, 161157040), (2, 80578520), (4, 40289260), (5, 32231408), (8, 20144630), (10, 16115704), (11, 14650640), (16, 10072315), (20, 8057852), (22, 7325320), (40, 4028926), (44, 3662660), (55, 2930128), (80, 2014463), (88, 1831330), (110, 1465064), (176, 915665), (220, 732532), (367, 439120), (440, 366266), (499, 322960), (734, 219560), (880, 183133), (998, 161480), (1468, 109780), (1835, 87824), (1996, 80740), (2495, 64592), (2936, 54890), (3670, 43912), (3992, 40370), (4037, 39920), (4990, 32296), (5489, 29360), (5872, 27445), (7340, 21956), (7984, 20185), (8074, 19960), (9980, 16148), (10978, 14680)]