19031768

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{577}}^1$

素因数の和:640

約数の個数: 64

約数和(自身を含む): 44390400

約数和(自身を除く): 25358632

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 31, 38, 56, 62, 76, 124, 133, 152, 217, 248, 266, 434, 532, 577, 589, 868, 1064, 1154, 1178, 1736, 2308, 2356, 4039, 4123, 4616, 4712, 8078, 8246, 10963, 16156, 16492, 17887, 21926, 32312, 32984, 35774, 43852, 71548, 76741, 87704, 125209, 143096, 153482, 250418, 306964, 339853, 500836, 613928, 679706, 1001672, 1359412, 2378971, 2718824, 4757942, 9515884, 19031768]

約数ペア:

[(1, 19031768), (2, 9515884), (4, 4757942), (7, 2718824), (8, 2378971), (14, 1359412), (19, 1001672), (28, 679706), (31, 613928), (38, 500836), (56, 339853), (62, 306964), (76, 250418), (124, 153482), (133, 143096), (152, 125209), (217, 87704), (248, 76741), (266, 71548), (434, 43852), (532, 35774), (577, 32984), (589, 32312), (868, 21926), (1064, 17887), (1154, 16492), (1178, 16156), (1736, 10963), (2308, 8246), (2356, 8078), (4039, 4712), (4123, 4616)]