20123560

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{13597}}^1$

素因数の和:13645

約数の個数: 32

約数和(自身を含む): 46505160

約数和(自身を除く): 26381600

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 13597, 27194, 54388, 67985, 108776, 135970, 271940, 503089, 543880, 1006178, 2012356, 2515445, 4024712, 5030890, 10061780, 20123560]

約数ペア:

[(1, 20123560), (2, 10061780), (4, 5030890), (5, 4024712), (8, 2515445), (10, 2012356), (20, 1006178), (37, 543880), (40, 503089), (74, 271940), (148, 135970), (185, 108776), (296, 67985), (370, 54388), (740, 27194), (1480, 13597)]