7758140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{563}}^1$

素因数の和:638

約数の個数: 48

約数和(自身を含む): 17908128

約数和(自身を除く): 10149988

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 53, 65, 106, 130, 212, 260, 265, 530, 563, 689, 1060, 1126, 1378, 2252, 2756, 2815, 3445, 5630, 6890, 7319, 11260, 13780, 14638, 29276, 29839, 36595, 59678, 73190, 119356, 146380, 149195, 298390, 387907, 596780, 775814, 1551628, 1939535, 3879070, 7758140]

約数ペア:

[(1, 7758140), (2, 3879070), (4, 1939535), (5, 1551628), (10, 775814), (13, 596780), (20, 387907), (26, 298390), (52, 149195), (53, 146380), (65, 119356), (106, 73190), (130, 59678), (212, 36595), (260, 29839), (265, 29276), (530, 14638), (563, 13780), (689, 11260), (1060, 7319), (1126, 6890), (1378, 5630), (2252, 3445), (2756, 2815)]