3906280

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{1993}}^1$

素因数の和:2018

約数の個数: 48

約数和(自身を含む): 10229220

約数和(自身を除く): 6322940

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 1993, 3986, 7972, 9965, 13951, 15944, 19930, 27902, 39860, 55804, 69755, 79720, 97657, 111608, 139510, 195314, 279020, 390628, 488285, 558040, 781256, 976570, 1953140, 3906280]

約数ペア:

[(1, 3906280), (2, 1953140), (4, 976570), (5, 781256), (7, 558040), (8, 488285), (10, 390628), (14, 279020), (20, 195314), (28, 139510), (35, 111608), (40, 97657), (49, 79720), (56, 69755), (70, 55804), (98, 39860), (140, 27902), (196, 19930), (245, 15944), (280, 13951), (392, 9965), (490, 7972), (980, 3986), (1960, 1993)]