78869860

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{30103}}^1$

素因数の和:30243

約数の個数: 24

約数和(自身を含む): 166896576

約数和(自身を除く): 88026716

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 30103, 60206, 120412, 150515, 301030, 602060, 3943493, 7886986, 15773972, 19717465, 39434930, 78869860]

約数ペア:

[(1, 78869860), (2, 39434930), (4, 19717465), (5, 15773972), (10, 7886986), (20, 3943493), (131, 602060), (262, 301030), (524, 150515), (655, 120412), (1310, 60206), (2620, 30103)]