39556940

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{313}}^1$

素因数の和:482

約数の個数: 48

約数和(自身を含む): 85458240

約数和(自身を除く): 45901300

約数列:

[1, 2, 4, 5, 10, 20, 71, 89, 142, 178, 284, 313, 355, 356, 445, 626, 710, 890, 1252, 1420, 1565, 1780, 3130, 6260, 6319, 12638, 22223, 25276, 27857, 31595, 44446, 55714, 63190, 88892, 111115, 111428, 126380, 139285, 222230, 278570, 444460, 557140, 1977847, 3955694, 7911388, 9889235, 19778470, 39556940]

約数ペア:

[(1, 39556940), (2, 19778470), (4, 9889235), (5, 7911388), (10, 3955694), (20, 1977847), (71, 557140), (89, 444460), (142, 278570), (178, 222230), (284, 139285), (313, 126380), (355, 111428), (356, 111115), (445, 88892), (626, 63190), (710, 55714), (890, 44446), (1252, 31595), (1420, 27857), (1565, 25276), (1780, 22223), (3130, 12638), (6260, 6319)]