19813040

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19051}}^1$

素因数の和:19077

約数の個数: 40

約数和(自身を含む): 49611408

約数和(自身を除く): 29798368

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 19051, 38102, 76204, 95255, 152408, 190510, 247663, 304816, 381020, 495326, 762040, 990652, 1238315, 1524080, 1981304, 2476630, 3962608, 4953260, 9906520, 19813040]

約数ペア:

[(1, 19813040), (2, 9906520), (4, 4953260), (5, 3962608), (8, 2476630), (10, 1981304), (13, 1524080), (16, 1238315), (20, 990652), (26, 762040), (40, 495326), (52, 381020), (65, 304816), (80, 247663), (104, 190510), (130, 152408), (208, 95255), (260, 76204), (520, 38102), (1040, 19051)]