207783560

素因数分解:

$2^3\times 5^1\times {\mathrm{809}}^1\times {\mathrm{6421}}^1$

素因数の和:7241

約数の個数: 32

約数和(自身を含む): 468163800

約数和(自身を除く): 260380240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 809, 1618, 3236, 4045, 6421, 6472, 8090, 12842, 16180, 25684, 32105, 32360, 51368, 64210, 128420, 256840, 5194589, 10389178, 20778356, 25972945, 41556712, 51945890, 103891780, 207783560]

約数ペア:

[(1, 207783560), (2, 103891780), (4, 51945890), (5, 41556712), (8, 25972945), (10, 20778356), (20, 10389178), (40, 5194589), (809, 256840), (1618, 128420), (3236, 64210), (4045, 51368), (6421, 32360), (6472, 32105), (8090, 25684), (12842, 16180)]