20015890

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{1151}}^1$

素因数の和:1242

約数の個数: 32

約数和(自身を含む): 37822464

約数和(自身を除く): 17806574

約数列:

[1, 2, 5, 10, 37, 47, 74, 94, 185, 235, 370, 470, 1151, 1739, 2302, 3478, 5755, 8695, 11510, 17390, 42587, 54097, 85174, 108194, 212935, 270485, 425870, 540970, 2001589, 4003178, 10007945, 20015890]

約数ペア:

[(1, 20015890), (2, 10007945), (5, 4003178), (10, 2001589), (37, 540970), (47, 425870), (74, 270485), (94, 212935), (185, 108194), (235, 85174), (370, 54097), (470, 42587), (1151, 17390), (1739, 11510), (2302, 8695), (3478, 5755)]