81934240

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{16519}}^1$

素因数の和:16565

約数の個数: 48

約数和(自身を含む): 199825920

約数和(自身を除く): 117891680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 992, 1240, 2480, 4960, 16519, 33038, 66076, 82595, 132152, 165190, 264304, 330380, 512089, 528608, 660760, 1024178, 1321520, 2048356, 2560445, 2643040, 4096712, 5120890, 8193424, 10241780, 16386848, 20483560, 40967120, 81934240]

約数ペア:

[(1, 81934240), (2, 40967120), (4, 20483560), (5, 16386848), (8, 10241780), (10, 8193424), (16, 5120890), (20, 4096712), (31, 2643040), (32, 2560445), (40, 2048356), (62, 1321520), (80, 1024178), (124, 660760), (155, 528608), (160, 512089), (248, 330380), (310, 264304), (496, 165190), (620, 132152), (992, 82595), (1240, 66076), (2480, 33038), (4960, 16519)]