72739240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{259783}}^1$

素因数の和:259801

約数の個数: 32

約数和(自身を含む): 187044480

約数和(自身を除く): 114305240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 259783, 519566, 1039132, 1298915, 1818481, 2078264, 2597830, 3636962, 5195660, 7273924, 9092405, 10391320, 14547848, 18184810, 36369620, 72739240]

約数ペア:

[(1, 72739240), (2, 36369620), (4, 18184810), (5, 14547848), (7, 10391320), (8, 9092405), (10, 7273924), (14, 5195660), (20, 3636962), (28, 2597830), (35, 2078264), (40, 1818481), (56, 1298915), (70, 1039132), (140, 519566), (280, 259783)]