19778790

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{647}}^1\times {\mathrm{1019}}^1$

素因数の和:1676

約数の個数: 32

約数和(自身を含む): 47589120

約数和(自身を除く): 27810330

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 647, 1019, 1294, 1941, 2038, 3057, 3235, 3882, 5095, 6114, 6470, 9705, 10190, 15285, 19410, 30570, 659293, 1318586, 1977879, 3296465, 3955758, 6592930, 9889395, 19778790]

約数ペア:

[(1, 19778790), (2, 9889395), (3, 6592930), (5, 3955758), (6, 3296465), (10, 1977879), (15, 1318586), (30, 659293), (647, 30570), (1019, 19410), (1294, 15285), (1941, 10190), (2038, 9705), (3057, 6470), (3235, 6114), (3882, 5095)]