87290788

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{1667}}^1$

素因数の和:1756

約数の個数: 48

約数和(自身を含む): 176541120

約数和(自身を除く): 89250332

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 53, 76, 106, 212, 247, 494, 689, 988, 1007, 1378, 1667, 2014, 2756, 3334, 4028, 6668, 13091, 21671, 26182, 31673, 43342, 52364, 63346, 86684, 88351, 126692, 176702, 353404, 411749, 823498, 1148563, 1646996, 1678669, 2297126, 3357338, 4594252, 6714676, 21822697, 43645394, 87290788]

約数ペア:

[(1, 87290788), (2, 43645394), (4, 21822697), (13, 6714676), (19, 4594252), (26, 3357338), (38, 2297126), (52, 1678669), (53, 1646996), (76, 1148563), (106, 823498), (212, 411749), (247, 353404), (494, 176702), (689, 126692), (988, 88351), (1007, 86684), (1378, 63346), (1667, 52364), (2014, 43342), (2756, 31673), (3334, 26182), (4028, 21671), (6668, 13091)]