204477620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{127}}^1\times {\mathrm{223}}^1$

素因数の和:397

約数の個数: 72

約数和(自身を含む): 458809344

約数和(自身を除く): 254331724

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 127, 190, 223, 254, 361, 380, 446, 508, 635, 722, 892, 1115, 1270, 1444, 1805, 2230, 2413, 2540, 3610, 4237, 4460, 4826, 7220, 8474, 9652, 12065, 16948, 21185, 24130, 28321, 42370, 45847, 48260, 56642, 80503, 84740, 91694, 113284, 141605, 161006, 183388, 229235, 283210, 322012, 402515, 458470, 538099, 566420, 805030, 916940, 1076198, 1610060, 2152396, 2690495, 5380990, 10223881, 10761980, 20447762, 40895524, 51119405, 102238810, 204477620]

約数ペア:

[(1, 204477620), (2, 102238810), (4, 51119405), (5, 40895524), (10, 20447762), (19, 10761980), (20, 10223881), (38, 5380990), (76, 2690495), (95, 2152396), (127, 1610060), (190, 1076198), (223, 916940), (254, 805030), (361, 566420), (380, 538099), (446, 458470), (508, 402515), (635, 322012), (722, 283210), (892, 229235), (1115, 183388), (1270, 161006), (1444, 141605), (1805, 113284), (2230, 91694), (2413, 84740), (2540, 80503), (3610, 56642), (4237, 48260), (4460, 45847), (4826, 42370), (7220, 28321), (8474, 24130), (9652, 21185), (12065, 16948)]