78800060

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1\times {\mathrm{263}}^1$

素因数の和:554

約数の個数: 48

約数和(自身を含む): 169247232

約数和(自身を除く): 90447172

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 211, 263, 284, 355, 422, 526, 710, 844, 1052, 1055, 1315, 1420, 2110, 2630, 4220, 5260, 14981, 18673, 29962, 37346, 55493, 59924, 74692, 74905, 93365, 110986, 149810, 186730, 221972, 277465, 299620, 373460, 554930, 1109860, 3940003, 7880006, 15760012, 19700015, 39400030, 78800060]

約数ペア:

[(1, 78800060), (2, 39400030), (4, 19700015), (5, 15760012), (10, 7880006), (20, 3940003), (71, 1109860), (142, 554930), (211, 373460), (263, 299620), (284, 277465), (355, 221972), (422, 186730), (526, 149810), (710, 110986), (844, 93365), (1052, 74905), (1055, 74692), (1315, 59924), (1420, 55493), (2110, 37346), (2630, 29962), (4220, 18673), (5260, 14981)]